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Pin No.
Signal
Description
56
HD.E
Head drive signal of printer (HD.E)
57
HD.F
Head drive signal of printer (HD.F)
58
HD.G
Head drive signal of printer (HD.G)
59
HD.H
Head drive signal of printer (HD.H)
60
RESET
Reset signal (RESET)
61
DP
Dot pulse form printer (DP)
62
RP
Reset pulse from printer (RP)
63
OFF
Mode key status (OFF)
64
PWD
Power down signal (PWD)
65
RB0
Address signal for RAM (Bank 0)
66
RB1
Address signal for RAM (Bank 1)
67
RB2
Address signal for RAM (Bank 2)
68
VDD
VDD
69
X2
System clock ( 5MHz)
70
X1
System clock ( 5MHz)
71
IC
GND
72
XT2
Sub system clock (32.768KHz)
73
XT1
Sub system clock (32.768KHz)
74
AVDD
VDD
75
AVREF0
VCC
76
VPP.S
VPP detection signal (VPP.S)
77
BAT
Non connection
78
FB0
Address signal of Fiscal ROM bank 0
79
FB1
Address signal of Fiscal ROM bank 1
80
FB2
Address signal of Fiscal ROM bank 2
— 10 —
Status of
Status of
In/Out
Power On Power OFF
Out
Low
Out
Low
Out
Low
Out
Low
In
High
In
Low
In
High
Out
High
In
Low
Out
High
Out
High
Out
High
-
5V
In
Pulse
In
Pulse
-
GND
In
Pulse
In
Pulse
-
5V
-
GND
In
Low
-
High
Out
High
Out
High
Out
High
Low
Low
Low
Low
High
High
High
Low
High
High
High
High
5V
High
High
GND
Pulse
Pulse
5V
GND
Low
High
High
High
High
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