Epson EPL-N1200 Service Manual page 143

Appendix A
Table A-7. CN11 Pin Assignments (Continued)
Pin No.
71
72
73
74
75,76
1,2,3,4
37,38,77,78,79,80 VSS
39
40
41
42
43
44
45
46
47
48
A-12
Signal Name
A22
A23
RD/BY
RESET
VPP
VCC
CSI0
CSI1
CSO0
CSO1
RD
WR
BWE0
BWE2
BWE1
BWE3
EPL-N1200 Service Manual
I/O Description
O Address bus bit 22
O Address bus bit 23
— Not used
O Reset signal
— +5 V DC
— +5 V DC
— Ground
O Chip select inable 0
O Chip select inable 1
— Not used
— Not used
O Read signal
O Write signal
O Bus write enable 0
O Bus write enable 1
O Bus write enable 2
O Bus write enable 3
Rev. A