Epson EPL-N1200, Service Manual

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Table A-6. CN7Pin Assignments
Pin No. Signal Name I/O Description
1,2,3,4,5,6 +5V — +5 V DC
19,20,21,22,23,24 GND — Ground
7 TXD — Ground
8 READY — +5 VDC
9 RXD — Not used
10 NC — Not used
11 RESET O Reset signal
12 INH O I/F disabled
13 CMREQ I Request command
14 WRRDY I I/F ready
15 RDREQ I Data read request
16 WR O Write signal
17 RD O Read signal
18 CS O Chip select signal
25 A3 O Address bus bit 3
26 A2 O Addres bus bit 2
27 A1 O Addres bus bit 1
28 A0 O Addres bus bit 0
29 D7 I/O Data bus bit 7
30 D6 I/O Data bus bit 6
31 D5 I/O Data bus bit 5
32 D4 I/O Data bus bit 4
33 D3 I/O Data bus bit 3
34 D2 I/O Data bus bit 2
35 D1 I/O Data bus bit 1
36 D0 I/O Data bus bit 0
Appendix A EPL-N1200 Service Manual
A-10 Rev. A