Service Manuals, User Guides, Schematic Diagrams or docs for : xerox notetaker memos 19791101_NoteTaker_Ethernet
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J 1
Boot Logic Datal Address Bus
r---------------------------------------------~--~Input
I
Data
Buffers
I
8284
SelectMainMem I
I Addres! Addr
SelectinterruDt
SelectENetCtI
Bus
Registe" Decode r SelectENetData
- LS313's
~~~ ---- Addr.
and
Output
Data
8086 Latches
1 K X 16 Load =.4ma
I SeiectLocaJRAM I I
I
I II I
RAM
I I
I I
I
I
ControlBus I Bus
Timine
I
I
'--
III Logic
I I I
I I
II
I
I I I Function ~ I
System
Ethernet
Logic
I---
Decoder
U Bus
Tol From
Transceiver
IntAck
I Loss of Carrier
Pa ritY'E r ro r Interrupt
Collision
VertSvnc Cont rolle r
Systlntrpt
8259A
XEROX Project Ethernet Processor
File Designer Rev Date Page 1
SPG NoteTaker Block Diagram ENETBLOCK.si Ron Freeman A 11/1/79 1 i
------
40 LUSFIVE
.:::g~~:.::g:""'--2~~~ROUND1i8086m n
~~~~r,ROUND2 #aib
_~esH;tReac,i
t:::NetW riteReady
ECMemReady
XtalConnect
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