Service Manuals, User Guides, Schematic Diagrams or docs for : HP terminal 262x 13220-91088_2623A_Processor_Module_Aug81

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                              HP 1 ~52~~ 0

                         PROCESSOR MODULE
                    Manual Part No. 13220-91088
                              REVISED
                             AUG-1.4-B1




        DATA TERMINAL
    TECHNICAL INFORMATION




                                             HEWLETT~PACKARD


Printed in U.S.A.
13220                                                                    13220-91088/02
Processor Module                                                         REV AUG-14-81




1.0        INTRODUCTION

          The 02620-60088 Processor PCA perforMs the terMinal logic functions for
          the 2623A terMinal.  Its operation is based on the Z80A Microprocessor,
          National SeMiconductor 8367 CRT Controller (eRTC), and a proM based
          Microsequenced graphics controller.


          The control and I/O section of the Processor peA provides control
          signals, input/output and data processing functions.        The MeMory
          section provides 16K bytes of dynaMic RAM for character display MeMory,
          scratch pad MeMory, data buffers and space for up to six 4K or 8K byte
          ROMs of which 40K are used for cOMplete terMinal operation (4K of ROM
          optional with integral printer).       The Graphics MeMory subsysteM
          contains 16K words (16K X 16) of vector display MeMory. The Graphics
          subsysteM is responsible for both write and display refresh of the
          graphics MeMory. The video control section provides tiMing signals for
          driving the sweep circuitry and video logic as well as perforMing
          direct MeMory access (DMA) of display data. A detailed description of
          the operation of each of these sections follows in section 3.0.
2.0        OPERATING PARAMETERS.

           A sUMMary of operating paraMeters for the Processor Module is contained
           in tables 1.0 through 4.0




                             Table 1.0    Physical ParaMeters

        Part                                         Size (L x W x D)          Weight
1     NUMber      1 NOMenclature         1      +/-0.1 Inches       1 (Pounds) 1
1=================1======================1==========================1==========1
1                 1                      1                          ' I
1                 1                      1                          1          1
I     02620-60088   ,     Processor peA        I     12.3 x 10.9 x O.S     I    1.4     I
I                   I                          I                           1            1
1                 1                      1                          1          I
I                 1                      I                          1          1
================================================================================
                                             PROCESSOR MODULE
                                        Manual Part No. 13220-91088
                                                     REVISED
                                                    AUG

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