Epson LQ-1050 Technical Manual page 217

Name
Pin No.
9
BUSY
DIN8
11
18 DIN 1
19 STB
Psw
20
6,21,35
22
J
29
RD
30
31 WR
32 Cs
33
34 BSSL
EBSY
36
37 BSYF
38 RDY
42 In
8 BO1
3
2
5
I
40
38
7 Out
41
Table A-5. M5461OP Terminal Function
Direction
BUSY signal
8-parallel data
STROBE pulse
CPU Output timing of the BUSY signal
O: Positive edge of STROBE
1: Negative edge of STROBE
8-bit parallel data
CPU READ pulse
WRITE pulse
Chip select signal
CPU
Acknowledge signal
BUSY select signal
O: BUSY signal goes to LOW when ACKI goes to HIGH
1: BUSY signal goes to LOW when CS WR goes to low
BUSY signal
CPU BUSY
-
+5VDC
In PE signal
PE LED to control panel
out
In
out
In
I
out
In
PE to
ERROR from
power
CPU
host
CPU
A-1 6
Function