ICP DAS USA 7188X, User Manual

Page: 23 / 114

5.1.3 J2 Pin definition:
No Name Description
1 A0 Address bus
2 D0 Data bus
3 A1 Address bus
4 D1 Data bus
5 A2 Address bus
6 D2 Data bus
7 A3 Address bus
8 D3 Data bus
9 A4 Address bus
10 D4 Data bus
11 A5 Address bus
12 D5 Data bus
13 A6 Address bus
14 D6 Data bus
15 A7 or N/C
This pin is reserved & must be N/C for 7188XC & 7521
series
16 D7 Data bus
17 INT4 or N/C
Interrupt request input of channel 4(asynchronous, active
high), this pin is reserved & must be N/C for 7188XC &
752N series
18 /WR Write strobe output (synchronous, active low)
19 /CS Chip select output (synchronous, active low)
20 /RD Read strobe output (synchronous, active low)
I/O Expansion Bus for 7188X/7188E User’s Manual, Jan/2005 v1.5, 7PH-000-15---23