Epson Stylus 1500 Service Manual page 156

Appendix
Table A-3. Connector Pin Assignments – CN2
Pin I/O
1 - 6 —
7 O
8 O
9 I
10 —
11 O
12 O
13 I
14 I
15 I
16 O
17 O
18 O
19 - 24 —
25 O
26 O
27 O
28 O
29 I/O
30 I/O
31 I/O
32 I/O
33 I/O
34 I/O
35 I/O
36 I/O
A-4
Name
+5 V +5 VDC
TXD Transmit data
READY Ready to receive data
RXD Receive data
NC Not connected
RST Reset
INH Inhibit
CMREQ Command request
WRRDY Write ready
RDREQ Read ready
WR Write
RD Read
CS Chip select
GND Ground
A3 Address bus bit 3
A2 Address bus bit 2
A1 Address bus bit 1
A0 Address bus bit 0
D7 Data bus bit 7
D6 Data bus bit 6
D5 Data bus bit 5
D4 Data bus bit 4
D3 Data bus bit 3
D2 Data bus bit 2
D1 Data bus bit 1
D0 Data bus bit 0
Stylus 1500 Service Manual
Description
Rev.A