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Asus eee pc p900

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                        5                            4                                3                                    2                                                      1

    01_Block Diagram
    02_System Setting
    03_Power Sequence
    04_EC Pin Define
                                                                                    Celeron-M ULV
                                                                                                                      CLOCK GEN
D   06_*                                                                              FCBGA479                                                                                                                      D

    07_Clock Gen_ICS9LPR426
                                                                                                                    THERMAL CONTROL
    08_Dothan_HOST                                                                            FSB400MHz
    12_910GML_VGA_LVDS_TV                                                                                  400MHz
    13_910GML_PWR                                                        LVDS
    14_910GML_GND                                         8.9 AUO LCD                 BRIDGE              Channel A       SODIMM 200P
    16_ICH6-M_USB_PCIE_DMI_IDE_SATA                                                       910GML           400MHz
                                                                 CRT                                      Channel B      NC
    18_DDR2 SODIMM
    20_Onboard VGA

    21_LCD Conn
                                                                                              x4 DMI                                                                                                                C

    22_Minicard                                                                                                                                           LINE OUT
    23_LAN_Atheros L2
    25_Onboard Flash                                     Debug Conn                                                                                       AUDIO AMP                           Speaker
    26_Flash Conn
                                                                                                          AZALIA      AZALIA CODEC
    27_USB Port
                                                                                      SOUTH                            Realtek ALC662
                                                                          LPC                                                                             EXT MIC
    28_Card Reader_ENE UB6225P                              EC                        BRIDGE
    29_Camera Conn                                       ENE KBC3310
    30_Codec_ALC662                                                                                                                                       INT MIC
    31_Audio_AMP_Jack                                                                     ICH6-M
    32_EC_ENE KB3310                          SPI ROM    Internal KB Touch Pad
    33_Switch_SPI ROM_Debug Conn
    34_KB_Touch Pad
B                                                                                                                                                                                                                   B
    35_Thermal Sensor_FAN                     BlueTooth AW-BT253         USB_P6
    37_Discharge                                                         USB_P1/2/3
    38_PWR Jack                                          USB Port *3                                 PCIE_3
    39_Srew Hole                                                                                     USB_P5              MINICARD                         AW-GE780
    41_POWER FLOW                      SD/MMC            Card Reader       USB_P4
                                       Card Reader         ENE UB6225P                               PCIE_2
                                                                                                                         LAN                              RJ-45
    44_POWER_3V_5V_VTT_DDR                                                                                               Atheros L2
                                                         1.3M Camera
    46_POWER_1.05V_1.5V_2.5V                                                                                                                              Onboard
                                                                                                     IDE Slave        Flash Controller
    47_POWER_1.8V_DUAL_5VSB                                                USB_P0                                                                         NAND Flash
                                      NAND Flash                           SATA1
A                                                         Flash Conn                                                                                                                                                A

                                      Card                                 IDE Master

                                                                                                                                                                               Title : Block Diagram
                                         HD                                                                                                                                   Engineer:       Tiansen_Wu
                                                                                                                                          ASUSTek Computer INC.
                                                                                                                                           Size    Project Name                                              Rev
                                                                                                                                           A3               P900                                             1.2G
                                                                                                                                         Date: Wednesday, February 27, 2008           Sheet    1   of   47
                                                     4                                3                                    2                                                      1
              5                                                 4                3                                            2                                                        1

D   ICH6 GPIO SETTING                                                                                                                                                                                                    D

    Pin           Pin Name     Connect to           Type   Input/Output Set
    B7     GPI0/REQ6#          10K Pull +3V          I     fixed as Input only       Pin        Pin Name        Connect to        Type   Input/Output Set
    E8     GPI1 / REQ5#        10K Pull +3V          I     fixed as Input only       AF17   GPI26/SATA0GP       NC                 GPI   (GPI)Input
    D9     GPI2 / PIRQE#       10K Pull +3V          I     fixed as Input only       R3     GPIO27             CARD_READER_EN#     I/O   Output
    C7     GPI3 / PIRQF#       10K Pull +3V          I     fixed as Input only       T3     GPIO28              NC                 I/O   Output
    C6     GPI4 / PIRQG#       10K Pull +3V          I     fixed as Input only       AE18   GPI29 / SATA1GP    PCBVER0             GPI   (GPI)Input
    M3     GPI5 / PIRQH#       10K Pull +3V          I     fixed as Input only       AF18   GPI30 / SATA2GP     NC                 GPI   (GPI)Input
    AD19   GPI6 / BMBUSY#      NB BMBUSY#            I     Input                     AG18   GPI31 / SATA3GP    PCBVER1             GPI   (GPI)Input
    AE19   GPI7                 NC                   GPI   fixed as Input only       AF19   GPIO32 / CLKRUN#   10K Pull +3V        I/O   Input
    R1     GPI8                EC KBC_SCI#           GPI   fixed as Input only       AF20   GPIO33             PM_VCOREL1          I/O   Output
    C23    GPI9/OC4#           10K Pull +3V          I     Input                     AC18   GPIO34             PM_VCOREL2          I/O   Output
    D23    GPI10/OC5#          10K Pull +3V          I     Input                     NA     GPIO35              NA                 NA    NA
    W6     GPI11 / SMBALERT#   S_SMBALERT#           I     Input                     NA     GPIO36              NA                 NA    NA
    M2     GPI12                NC                   GPI   fixed as Input only       NA     GPIO37              NA                 NA    NA
C                                                                                                                                                                                                                        C
    R6     GPI13               EC EXTSMI#            GPI   fixed as Input only       NA     GPIO38              NA                 NA    NA
    C25    GPI14/OC6#          10K Pull +3V          I     Input                     NA     GPIO39              NA                 NA    NA
    C24    GPI15 /OC7#         10K Pull +3V          I     Input                     F7     GPI40 / REQ4#      10K Pull +3V        I     Input
    D8     GPO16/GTN6#          NC                   O     Output                    P4     GPI41 / LDRQ1#      NC                 I     Input
    F6     GPO17 / GNT5#        NC                   O     Output                    NA     GPIO42              NA                 NA    NA
    AC21   GPO18 / STP_PCI#    Clock GEN STP_PCI#    O     Output                    NA     GPIO43              NA                 NA    NA
    AB21   GPO19               WLAN_LED#             GPO fixed as Output only        NA     GPIO44              NA                 NA    NA
    AD22   GPO20 / STP_CPU#    STP_CPU#              O     Output                    NA     GPIO45              NA                 NA    NA
    AD20   GPO21               CAMERA_EN             GPO fixed as Output only        NA     GPIO46              NA                 NA    NA
    NA     GPIO22               NC                   NA    NA                        NA     GPIO47              NA                 NA    NA
    AD21   GPO23               SPEAKER_EN#           GPO fixed as Output only        E7     GPO48 /GNT4#        NC                 O     Output
    V3     GPIO24              MINICARD_EN#          I/O   Output                    AC25   GPO49 / CPUPWRGD   CPU Power Ok        O     Output
    P5     GPIO25              WLAN_ON#              I/O   Output

B                                                                                                                                                                                                                        B

A                                                                                                                                                                                                                        A


                                                                                                                                                                                    Title : System Setting
                                                                                                                                                 ASUSTek Computer INC.             Engineer:       Tiansen_Wu
                                                                                                                                                  Size   Project Name                                             Rev
                                                                                                                                                  A3              P900                                            1.2G
                                                                                                                                              Date: Wednesday, February 27, 2008           Sheet    2   of   47
                                                                4                3                                            2                                                        1
                      5                                                                                          4                                                                                                3                                                   2                                                                     1

                                                                                                                                                                                                                                                                          Signal S0/S1 S3              S4/S5         Power
                                                                                                                                                                                                                                                  Only Battery            VSUS_ON       H      H          L          VSB
                           *This sequence is for Battery Plug-in and no Adapter,                                                                                                                                                                  Adapter In              VSUS_ON       H      H          H          VSB
                           if Adapter Plug-in,the sequence change to:                                                                                                                                                                                                     SUSB_ON       H      L          L          Main
                           A/D_DOCK_IN--->AC_BAT_SYS--->+3VA--->VSUS_ON--->+3VSB & +5VSB
                                                                                                                                                                                                                                                                          SUSC_ON       H      H          L          DUAL

D                                                                                                                                                                                                                                                                                                                                                                              D

                                                                                                                                                            4                                                                                       3       AC_BAT_SYS
                                    2                                                               3                                                                             +5VA                                +3VA                                                                             +1.8V_DUAL
                                         A/D_DOCK_IN                                                                          MP2307DN                                                            APL5315BI                                                                        MP2307DN                                                VTT_DDR
                          Adapter                                                     AC_BAT_SYS                                                                                                                                                     13      SUSC_ON                                                          RT9173
                                                                                                                                                            7                                                                                                                                                    +5V
                                                            MAX8724ETI                                                                                           +3VSB                                                8
                                    2    BAT_CON                                                                                                                                                                      VSUS_GD
                          Battery                                                                                                                                                                 2*PMBS3904                                                                         +5VSB
                                                                                                                                    RT8020A                 7    +5VSB                            +2N7002                                                                      7                                    15        +5V
                                                                                                                                                                                                                                                                          14       SUSB_ON    SI4835BDY

                                                                                                                                                                                                                                                                           7         +3VSB                          15        +3V

       21                                                                                                                                                                                                                                                                 14       SUSB_ON    SI4835BDY

       24   VCORE                                             H_CPURST#                                                                                                                                                                                                               +3V
                                                                                      29                                                                                                                                                                                       15                                   16    +2.5V
                                                                                                                 NB 910GM
                              DOTHAN CPU                                                                                                                                                                                                                                              +5V
C                                                                                                                                                   PM_PWROK                                                                                                                   15             SI4835BDY                                                                        C

    VID[0..5]   23                                                                                                                                                                         26
                                                                                                                                                                                                                                                                      3    AC_BAT_SYS                                  16

                                                                                                                                                                                            (PLT_RST# is 34--41 RTCCLK(=1mS)
                                                                                                                                                                                            later than PM_PWROK,H_CPURST# is
                                        (logic AND of                                                                28                                                                     1mS after PLT_RST#)
                                        PWROK and
                                                            H_PWRGD              27
                                                                                                                                                                                                                                                             3        AC_BAT_SYS                                       21
                                                                 1    RTCRST#
                                     +                                                                                                                                                                                                                                                                             +VCCP                         22     VCCP_OK
                                                                                                                 SB ICH6
                                    BATT                                                                                                                                                                                        7                                                           MP2307DN                              DELAY
                                                                                                                                                                 (160mS after VRM_PWRGD)
                                                                                                                                                                                                                                     AC_BAT_SYS                           20
                                                                     28                                                                                                                                                         19    CPU_VRON     2N7002


                                                                                                                              11         12


B                                                                                                                                                                                                                                                                                                                                                                              B



                                                                                                                                                                                                                                                                 22   VCCP_OK                             CLK_PCIE_ICH
                                                                                      9                         10                                   26                                                                                                                                                   CLK_BCLK_CPU
                                                        4    +3VA                                                                                                                          VSUS_GD

                                              5     PWR_SW#
                                                                                                                                                                       13                       SUSC_ON
                                                                                                                                                                                                                                                        3        AC_BAT_SYS
                                                                 6                                                                                                                                                                                                                                        24     VCORE
                                                                                                                                                                       14                       SUSB_ON
                                                                                                                EC KB3110                                                                                                                               14        +5V                                                                       22
                                             25     VRM_PWRGD                                                                                                                                                                                                     VID[0..5]
                                                                                                                                                                                                CPU_VRON                                                23                           ISL6218CRZ
                                                                                                                                                                       19                                                                                                                                 VCORE_PG                   25    VRM_PWRGD
                                                                                                                                                                                  (55mS after SUSB_ON)                                                  19       CPU_VRON

A                                                                                                                                                                                                                                                                                                                                                                              A
       28       PCI_RST#                                    28       PLT_RST#                                                              28        PLT_RST#
                               IDE FLASH
                               CONTROLLOR                                                                 LAN                                                                                                                                                                                      P900_R1.1G_W/O_FLASH
                                                                                                          ATTANSIC L2                                                                             MINICARD
                                                                                                                                                                                                                                                                                                                                          Title : Power Sequence
                                                                                                                                                                                                                                                                                                    ASUSTek Computer INC.               Engineer:        Tiansen_Wu
                                                                                                                                                                                                                                                                                                     Size      Project Name                                             Rev
                                                                                                                                                                                                                                                                                                     A3                 P900                                            1.2G
                                                                                                                                                                                                                                                                                                   Date: Wednesday, February 27, 2008           Sheet     3   of   47
                                                                                                                 4                                                                                                3                                                   2                                                                     1
                          5                                           4                                            3                                                            2                                                                1

    Pin No.          Pin Name   Signal Name    Type    NOTE                       Pin No.       Pin Name   Signal Name      Type      NOTE                               EC KB3310 Other Pin SETTING
     1        GA20              A20GATE         O      A20GATE                     70       GPO3D          LCD_BACKOFF#      O        LCD_BACKOFF#                       Pin No.          Pin Name          Signal Name              Type              NOTE
     2        KBRST#            RC_IN#          O      KBRST#                      71       GPO3E          CLK_PWRSAVE#      O        Active when BAT_IN=1 and            3         SERIRQ                  INT_SERIRQ                    I/OD         8.2K Pull +3VS
     6        GPIO04            EMAIL_SW#       I      EMAIL_SW# , *               72       GPO3F          PM_BATLOW#        O        Battery Low Low                     4         LFRAME#                 LPC_FRAME#                    I
     13       PCIRST#           PCI_RST#        I      PCI Reset                   73       GPIO40         AC_OK             I        AC Adaptor Plug in                  5         LAD3                    LPC_AD3                       I/O
D                                                                                                                                                                                                                                                                                   D
     14       GPIO07            BAT_EXT         O      Reserved                    74       GPIO41         PM_RSMRST#        O        10K Pull GND                        7         LAD2                    LPC_AD2                       I/O
     15       GPIO08            EXTSMI#         O     EXTSMI#, 10K Pull +3VSUS     75       GPIO42         N.C               O        Reserved                            8         LAD1                    LPC_AD1                       I/O
     16       GPIO0A            LID_EC#         I      LID_EC#, *                  76       GPIO43         N.C               O        Reserved                            9         VCC                     +3VA_EC                       P
     17       GPIO0B            NC              O      LCD chip select             77       SCL1           SMB1_CLK          I/OD     4.7K Pull +3VA_EC                   10        LAD0                    LPC_AD0                       I/O
     18       GPIO0C            NC              I/O    LCD Data                    78       SDA1           SMB1_DAT          I/OD     4.7K Pull +3VA_EC                   11        GND                     GND                           P
     19       GPIO0D            DISTP_SW#       I      Touch Pad Disabled,*        79       SCL2           SMB2_CLK          I/OD     10K Pull +3VS                       12        PCICLK                  CLK_PCI_EC                    I
     20       SCI#              KBC_SCI#        O     KBC_SCI#, 10K Pull +3VSUS    80       SDA2           SMB2_DAT          I/OD     10K Pull +3VS                       22        VCC                     +3VA_EC                       P
     21       PWM1              BL_PWM_DA       O      LCD Light Switch            81       KSO16          N.C               O        Reserved                            24        GND                     GND                           P
     23       PWM2              BAT_CRITICAL    O      LCD clock                   82       KSO17          N.C               O        Reserved                            33        VCC                     +3VA_EC                       P
     25       GPIO11            PM_PWRBTN#      OD     Power Button to SB, *       83       PSCLK1         LCD_SCL           O        Reserved                            35        GND                     GND                           P
     26       FANPWM1           FAN0_PWM        O      CPU Fan(Unused)             84       PSDAT1         LCD_SDA           O        Reserved                            37        ECRST#                  EC_RST#                       I          Add 100K ohm to GND
     27       FANPWM2           FAN1_PWM        O      VGA Fan(Unused)             85       PSCLK2         LCD_CSB           O        Reserved                            67        AVCC                    +3VACC                        P
     28       FANFB1            FAN0_TACH       I      CPU FanTach(Unused)         86       PSDAT2         LCD_VSYNC         O        Reserved                            69        AGND                    AGND                          P
     29       FANFB2            FAN1_TACH       I      VGA FanTach(Unused)         87       PSCLK3         TP_CLK            I/OD     10K Pull +3VS                       94        GND                     GND                           P
C                                                                                                                                                                                                                                                                                   C
     30       GPIO16            E51_TX          O      RS232 debug port            88       PSDAT3         TP_DAT            I/OD     10K Pull +3VS                       96        VCC                     +3VA_EC                       P
     31       GPIO17            E51_RX          O      Reserved                    89       GPIO50         BATSEL_3S         O        Battery series. Hi:3S,              111       VCC                     +3VA_EC                       P
     32       GPIO18            PWR_SW#         I      power button, *             90       GPIO52         CHG_LED_UP#       O        charger LED                         113       GND                     GND                           P
     34       GPIO19            MAIL_LED#       O      Mail LED(Unused)            91       GPIO53         CAP_LED#          O        EC H/W controls                     119       RD#                     SPI_SO                        I
     36       GPIO1A            NUM_LED#        O      EC H/W controls(Unused)     92       GPIO54         PWR_LED_UP        O        EC H/W blinking                     120       WR#                     SPI_SI                        O
     38       CLKRUN#           N.C             O      Reserved                    93       GPIO55         SCRL_LED#         O        EC H/W controls                     112       XCLKI                   32KXCLKI                      I
     39       KSO0              KSO0            O      For Keyboard interface      95       GPIO56         PWR4G_SW#         I        *                                   123       XCLKO                   32KXCLKO                      O
     40       KSO1              KSO1            O      For Keyboard interface      97       GPXOA00        SPI_MODE#         O      "HW Strap for SPI Flash deExternal    124       V18R                    K_V18R                                   Reserved 1uF to GND
                                                                                                                                    Pull Down 100K ohm to GND"
     41       KSO2              KSO2            O      For Keyboard interface      98       GPXOA01        SUSC_ON           O                                            125       VCC                     +3VA_EC                       P
     42       KSO3              KSO3            O      For Keyboard interface      99       GPXOA02        VSUS_ON           O                                            128       SPICS#                  SPI_CE#                       O
     43       KSO4              KSO4            O      For Keyboard interface      100      GPXOA03        CPU_VRON          O
     44       KSO5              KSO5            O      For Keyboard interface      101      GPXOA04        SUSB_ON           O
     45       KSO6              KSO6            O      For Keyboard interface      102      GPXOA05        PWROK             O
     46       KSO7              KSO7            O      For Keyboard interface      103      GPXOA06        PM_LEVELDOWN#     O        Reserved
B    47       KSO8              KSO8            O      For Keyboard interface      104      GPXOA07        CHG_EN#           O      Battery charging enabled                                                                                                                        B

     48       KSO9              KSO9            O      For Keyboard interface      105      GPXOA08        PRECHG            O
     49       KSO10             KSO10           O      For Keyboard interface      106      GPXOA09        SPI_WP#           O
     50       KSO11             KSO11           O      For Keyboard interface      107      GPX0A10        OP_SD#            O        Audio OP
     51       KSO12             KSO12           O      For Keyboard interface      108      GPXOA11        BAT_LEARN         O
     52       KSO13             KSO13           O      For Keyboard interface      109      GPXID0         BATSEL_2P#        O        Battery parallel. Hi:1P,
     53       KSO14             KSO14           O      For Keyboard interface      110      GPXID1         CPU_LEVELDOWN#    O        Reserved
     54       KSO15             KSO15           O      For Keyboard interface      112      GPXID2         THRO_CPU          O        Active if Battery Temperature
                                                                                                                                      is over spec
     55       KSI0              KSI0            I      For Keyboard interface      114      GPXID3         SUSB#             I        Pull Down 100K ohm to GND
     56       KSI1              KSI1            I      For Keyboard interface      115      GPXID4         SUSC#             I        Pull Down 100K ohm to GND
     57       KSI2              KSI2            I      For Keyboard interface      116      GPXID5         CPUPWR_GD         I        10K Pull +3VS
     58       KSI3              KSI3            I      For Keyboard interface      117      GPXID6         VSUS_GD           I        Disabled **
     59       KSI4              KSI4            I      For Keyboard interface      118      GPXID7         BAT_VOLSEL        O        Reserved
     60       KSI5              KSI5            I      For Keyboard interface      121      GPIO57         INTERNET#         I        *
     61       KSI6              KSI6            I      For Keyboard interface      126      SPICLK         SPI_CLK           O        SPI Clock
A                                                                                                                                                                                                                                                                                   A
     62       KSI7              KSI7            I      For Keyboard interface      127      GPIO59         N.C               O        Reserved
     63       AD0               BAT_ICHG        I      Sense Power Loading
     64       AD1               BAT_CONFIG      I      sense Battery
     65       AD2               BAT_SENT        I      Reserved                                                                                                                                                                               Title : EC Pin Define
     66       AD3               BAT_TS          I      Reserved                                                                                                                                       ASUSTek Computer INC.               Engineer:          Tiansen_Wu
                                                                                                                                                                                                       Size    Project Name                                                  Rev
     68       GPO3C             DOC             O      Trigger Clock Gen
                                                                                                                                                                                                       A3               P900                                                 1.2G
                                                                                                                                                                                                     Date: Wednesday, February 27, 2008              Sheet    4   of    47
                                                                      4                                            3                                                            2                                                                1
                 5                                                      4                                             3                                            2                                                             1


     Rev        Date       Description                                                                                    Rev       Date       Description

     1.0G     2007/02/26   S701L Schematic 1.0G Beginning                                                                 1.2G   2007/06/30   P701 Schematic 1.2G Beginning


                                                                                                                                              1. Add R174 to short DASP pins of Master IDE device and SLave IDE device
D             2007/03/16   S701L 1.0G Gerber Out                                                                                              2. Use SB GPIO27 to controll Card Reader UB6225P Power                                                               D

                                                                                                                                              3. PR606084.2 connect to +5V to fix LCD flash issue
     1.1G     2007/03/24   S701L Schematic 1.1G Beginning
                                                                                                                                              4. Adjust SPEAKER pin define

                                                                                                                                              5. Adjust CHARGE LED and WLAN LED lightness
              2007/04/19   S701L 1.1G Gerber Out
                                                                                                                                              6. Use SB GPI 26, 29, 30, 31 for PCB version
     1.0G                  P701(S701L renamed) Schematic 1.0G Beginning                                                                       7. Change USB ESD diode for EMI request
                           1. PC8054, PR6075 /X to N/A                                                                                        8. Add Floating GND TP_GND and Spring TP1 & TP2 for EMI request

                           2. Attansic L2 change to Atheros L2(pin to pin)                                                                    9. Change PM_VCOREL1, PM_VCOREL2 default level
                           3. LC1, LC33 /CAP/X to N/A                                                                                         10. Add PQ48 to controll +3V_PE to fix WLAN AW-GE780 can't detect issue
                           4. C87 change to X5R to cost down                                                                                  11. Power Charger part update circuit for new Adapter
                           5. L1, L2, L3 change to 56 NH, R5, R6 change to 75 Ohm to pass CRT EA measure                                      12. Use SB GPI12 to detect LID signal level
                           6. PR48 change to 22K Ohm, PC35 change to 4700PF to fix no VCORE issue                                             13. Add H/W THERMTRIP circuit (page 36)
                           7. PR6074 change to 4.7K Ohm to fix +3VSB OCP issue                                                                14. Add U40 to prevent system auto power on after clear CMOS
                           8. Clock Gen CY28442-2 change to ICS9LPR367                                                                        15. Use SB GPI7 for THRO_CPU
                           9. Phase in Power Level Reduce solution, mark "Taipei0508"                                                         16. Power Charger part update circuit to prevent incorrect Adapter damage boards                                     C

                           10. Card Reader Socket change to SD Socket 12G25100091E                                                            17. Q1.1, Q2.1 change to +3V
                           11. Add System FAN circuit                                                                            2007/07/06   P701 1.2G Gerber Out
                           12. Camera change to USB port 7, Minicard change to USB port 5
                                                                                                                          1.2G   2007/07/26   P701 Schematic 1.3G Beginning
                           13. Use SB GPIO27 to Enable/Disable Card Reader UB6225P

                                                                                                                                              1. Add R11 for 801
                           14. Use SB GPIO28 to Enable/Disable Modem
                           15. Card Reader UB6225P share 48M clock from CLock Gen with SB USB part
                           16. Add D29 to fix LCD_CSB leakage current issue
                           17. LC29, LC30 change to 27PF to pass EA crystal measure
                           18. Change vaule of PR73, PR74, PC56 and add PC60 to adjust the power sequence timing
                           between Stand By power and RSMRST#
                           19. Remove USB port 1
                           20. Add +5V generate +3V_LCD circuit
                           21. Remove +5V_CHG generate circuit
                           22. Use SB GPIO33, GPIO34 to controll the level of VCORE
B                          23. U31 use APL5315BI-TRL to replace MAX8863TEUK(pin to pin, but reference voltage level                                                                                                                                                B
                           24. PR59 change to 130K Ohm for both 12V Adapter and 9.8V Adapter
              2007/05/22   P701 1.0G Gerber Out

     1.1G     2007/05/31   P701 Schematic 1.1G Beginning

                           1. Remove the 48M clock from CLock Gen to Card Reader UB6225P
                           2. Clock Gen ICS9LPR367 change to ICS9LPR426
                           3. Flash Connector increase SATA and USB interface
                           4. Add Onboard Flash(SM223 + NAND Flash x4)
                           5. BATT_CON pin 5 connect to GND
                           6. Q34 pin 1 connect to +3V to fix EC reset issue
                           7. Remove J1, J2
                           8. KB pin 28 connect to GND for P701-ISP_CARD
                           9. Use SB GPO23 to Enable/Disable Audio Amplifier
                           10. Use SB GPO21 to controll Camera Power
A                                                                                                                                                                                                                                                                  A
                           11. Use SB GPIO24 to controll Minicard Power
                           12. Use SB GPIO25 to Enable/Disable WLAN Ratio                                                                                                               P900_R1.1G_W/O_FLASH
                           13. Atheros L2 and Minicard SMBUS interface directly pull high
                           14. LCD_CON pin 20 connect to AC_BAT_SYS                                                                                                                                                           Title : History
              2007/06/07   P701 1.1G Gerber Out                                                                                                                                             ASUSTek Computer INC.            Engineer:       Tiansen_Wu
                                                                                                                                                                                             Size   Project Name                                            Rev
                                                                                                                                                                                             A3              P900                                           1.2G
                                                                                                                                                                                        Date: Wednesday, February 27, 2008           Sheet    5   of   47
                                                                        4                                             3                                            2                                                             1
    5       4                  3                  2                                                  1

D                                                                                                                                      D

C                                                                                                                                      C

B                                                                                                                                      B

A                                                                                                                                      A


                                                                                                  Title : Blank
                                                             ASUSTek Computer INC.               Engineer:       Tiansen_Wu
                                                              Size    Project Name                                              Rev
                                                              A3               P900                                             1.2G
                                                            Date: Wednesday, February 27, 2008           Sheet    6   of   47
            4                  3                  2                                                  1
                                         5                                                                                             4                                                                                   3                                                                                       2                                                             1

                         CR1     1                 2 Do Not Stuff                                       +3VSB                    +3V_CLK
                                                                                                                1           2











                       CLK_XIN       1         2       CLK_XOUT                                                120Ohm/100Mhz           CC1            CC2             CC3             CC4             CC5             CC6             CC7     

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