REV.-A
Table 2-4. Pin Function of GA (E05A15HA) (cent’d)
Pin No. Signal Name
Diraction
Function
26
PWD
IN
Printhead
driving signal
27
PFA
OUT
Paper feed motor driving signal
28
PFB
OUT
29
PFC
OUT
30
PFD
OUT
31
CTRGO
—
Not used
32
VDD
—
+5V
33
P5
OUT
Plunger solenoid driving signal
34
WR
IN
Write strobe signal
35
m
IN
Read strobe signal
36
I
Al
3R
I
OUT
37
I
Al 4R
I
OUT
38 HD9
OUT
39
Al
2
IN
40 Al 3
IN
41
Al 4
IN
42 Al 5
IN
43
AO
OUT
44 Al
OUT
45
A2
OUT
46
CTRG–
IN
47
I
m
I
IN
48
Vss
49
ALE
IN
50
I
CTRG+
I
IN
Address bit Al 3 for the P-ROM (4A)
Address bit Al 4 for the P-ROM (4A)
Printhead
driving signal (Head Data 9)
Address bit Al 2-Al 5 (input)
Address bit AO-A2 (output)
Not
used
Reset signal input
Logic Ground
Address Latch Enable
Not used
51
A3
OUT
I I
I
55
A7
OUT
Address bit A3-A7 (output)
56
DO
1/0 Input/Output data bus: DO - D7
I I
I
63
D7
1/0
64
Vrm
—
+5V
f%
.
.
.,
.
:
..”
~=.,.
NOTE:
“Direction””
on the signal flow is as viewed from the gate array.
2-30
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