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Pin assignments
The following table lists the signals and input/output status of the
pin assignments used for parallel communication. (The names in
parentheses show the signals when you use the MultiPASS 1000 as
a normal printer.)
No. Signal
10
11
12
13
14
15
16
17
18
A-6
Specifications
1
(STROBE)
HOSTCLK
2
(DATA 1)
3
(DATA 2)
4
(DATA 3)
5
(DATA 4)
6
(DATA 5)
7
(DATA 6)
8
(DATA 7)
9
(DATA 8)
(ACKNLG)
PTRCLK
(BUSY) PTRBUSY OUT
(P.E.)
ACK DATA REQ
(SELECT) XFLAG OUT
2
(AUTO FEED XT
)
HOST BUSY
NO CONNECTION
GND
GND
PERIPHERAL
4
LOGIC HIGH
1 All RETs are connected to GND.
2 These signals are valid only in Epson LQ printer control mode.
3 The level is raised to +5.0V at 3.3k
4 The level is raised to +5V at 390
I/O
No. Signal
IN
19
STROBE-RET
IN/OUT 20
DATA 1-RET
IN/OUT 21
DATA 2-RET
IN/OUT 22
DATA 3-RET
IN/OUT 23
DATA 4-RET
IN/OUT 24
DATA 5-RET
IN/OUT 25
DATA 6-RET
IN/OUT 26
DATA 7-RET
IN/OUT 27
DATA 8-RET
OUT
28
ACKNLG-RET
29
BUSY-RET
OUT
30
PAPER END-RET
31
(INIT)
32
(ERROR)
DATA AVAIL
33
GND
34
NO CONNECTION
3
35
+5.0V
36
(SELECT IN
1284 ACTIVE
register.
register.
I/O
1
IN
OUT
OUT
2
)
Appendix A
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