Oki B4100 - Manual (Page 423)

40055101TH Rev.4 423 /
Figure A3.2.21 Interface between M17 Board and CTR Board (PC interface unit)
IOGA3
PD0-PD7
Busy
nAck
PError
Select
nFault
nStrobe
nInit
nSelectIn
nAutoFd
BREQ
BACK
IC2
CPU
CN12
CN2
50pin
CN17
CN3
CN1
to PC
20pin
BREQ
BACK
SH7034
RD/WRT/CASL/RMCS
AD0-AD7
AD8-AD15
R17 CTR (option)
Transceiver
+5V
+5V
+5V
Dir
Driver
Receiver
PD0-PD7
Busy
nAck
PError
Select
nFault
nStrobe
nInit
nSelectIn
nAutoFd
nStrobe
nSelectIn
nAutoFd
IC1
DIR
BREQ-I
BREQ-O
BACK-I
BACK-O
RD/WRT/CASL/RMCS
AD0-AD7
AD8-AD15
EPM7064LC68-15