COM20019 Datasheet, PDF (80/81 Pages) SMSC Corporation – Low Cost ARCNET (ANSI 878.1) Controller with 2K x 8 On-Board RAM

APPENDIX B: EXAMPLE OF INTERFACE CIRCUIT DIAGRAM TO ISA BUS
ISA Bus
AEN
LS688x2
nG
12 bit
Comparators
SA15-SA4
SD7-SD0
P
Q
I/O Address Seeting (DIP Switches)
P=Q
12
12
LS245
A
16 bit Bus
Transceivers
A
B
8
8
DIR
nG
COM20019
nCS
D7-D0
nIOR
nIOW
SA2-SA0
3
3
IRQm
nIOCS16
DRQn
nDACK
TC
nREFRESH
RESETDRV
Schmitt-Trigger Buffer
80
DISCONTINUED DATASHEET
nRD
nWR
A2-A0
nINTR
nRESET