Epson Stylus 1500 Service Manual page 160

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-6
Name
+5 V +5 VDC
TXD Transmit data
READY Ready to receive data
RXD Receive data
NC Not connected
Reset
RST
Inhibit
INH
CMREQ Command request
WRRDY Write ready
RDREQ Read ready
WR Write
RD Read
CS Chip select
GND Ground
Address bus bit 3
A3
Address bus bit 2
A2
A1 Address bus bit 1
A0 Address bus bit 0
D7 Data bus bit 7
D6 Data bus bit 6
Data bus bit 5
D5
Data bus bit 4
D4
D3 Data bus bit 3
Data bus bit 2
D2
Data bus bit 1
D1
D0 Data bus bit 0
Description
EPSON Stylus 1500 Service Manual