Epson EPL-N1200 Service Manual page 140

EPL-N1200 Service Manual
Pin No. Signal Name
27,28,29,30 VCC
57,58,59,60 VCC
3,4,5,6 GND
41,42,43,44 GND
45 RESET
46 INH
47 CMREQ
48 WRRDY
49 RDREQ
50 WRT
51 RDT
52 TYPB
53 TXD
54 READY
55 RXD
56 NC
7 DB0
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 AB0
16 AB1
17 AB2
18 AB3
19 AB4
20 CS
21 RD
22 WR
23 IREQ
24 NMI
25 DREQ
26 DTCT
1 PCLK
2 RST
31 TXD+
32 TXD-
33 RXD+
34 RXD-
35 DTR
36 CTS
37 NC
38 NC
39 LCD
40 SWRD
Rev. A
Table A-5. CN4 Pin Assignments
I/O
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
—
—
—
—
—
—
—
—
—
—
Description
+5 VDC
+5 VDC
Ground
Ground
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Ground
+5 VDC
Not used
Not used
Data bus bit 0
Data bus bit 1
Data bus bit 2
Data bus bit 3
Data bus bit 4
Data bus bit 5
Data bus bit 6
Data bus bit 7
Address bus bit 0
Address bus bit 1
Address bus bit 2
Address bus bit 3
Address bus bit 4
Chip select signal
Read signal
Write signal
Address bus bit 13
Address bus bit 14
Address bus bit 11
Address bus bit 12
Clock
Reset signal
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Appendix A
A-9