Pin
No.
Signal
name
In/
Out
Function
105 DAX2 — Nu
106
MCR1 — Nu
107
MCR2 — Nu
108
WAIT Out Wait request signal
109
EXWAIT In External wait control input signal
110 RA18 Out Nu
111 RA17 Out Nu
112 GND — GND
113 RA16 Out Nu
114 RA15 Out Nu
115
RDO Out Expansion RD signal
Option
116
WRO Out Expansion WR signal
117
EXINT3 In Expansion interruption signal 3
Option
118
EXINT2 In Expansion interruption signal 2
119
EXINT1 In Expansion interruption signal 1
120
EXINT0 In Expansion interruption signal 0
121
OPTCS Out
Chip select base signal for expansion
option
122
ROS1 Out ROM 1 chip select signal
123
ROS2 Out ROM 2 chip select signal (NU)
124 RAS2 Out RAM 2 chip select signal
125 RAS1 Out RAM 1 ship select signal
126 RJRST In Printer reset signal
127 RJTMG In Printer timing signal
128 DT4 Out Printer dot signal 4
129 DT3 Out Printer dot signal 3
130 DT2 Out Printer dot signal 2
131 DT1 Out Printer dot signal 1
132 GND — GND
133 DT7 Out Printer dot signal 7
134 DT6 Out Printer dot signal 6
135 DT5 Out Printer dot signal 5
136
MTD Out Printer motor drive signal
137 MTD Out Printer motor drive signal
138 DOT9 Out Printer dot signal 9 (NU)
139 DOT8 Out Printer dot signal 8 (NU)
140 SYNC — Nu (+5V)
141
ASKRX — I/R input from I/R unit (NU)
142 VCC — +5V
143 GND — GND
144 — — Nu
145 RAS3 Out
146 RJMTR In Printer motor lock detection signal (NU)
147 SLMTD In Nu
148 SLMTS In Nu
149 SLMTR In GND
150 HTS2 Out Serial output to FMC unit (NU)
151 SCK2 Out Serial clock to FMC unit (NU)
152 STH2 In Serial input to FMC unit (NU) pull-up
153 — — Nu
154 — — Nu
155 — — Nu
156 — — Nu
157 — — Nu
158 LCDWT — Nu
159 DOTEN Out Dot drive enable signal
160 RASP — Nu
2-3. CKDC8
1) Pin configulation
2) Pin assignment (CKDC8)
Pin
No.
SYMBOL
SIGNAL
NAME
IN/
OUT
FUNCTION
1 DP DP OUT DISPLAY SEGMENT Dp
2 A SA OUT DISPLAY SEGMENT a
3 B SB OUT DISPLAY SEGMENT b
4 C SC OUT DISPLAY SEGMENT c
5 D SD OUT DISPLAY SEGMENT d
6 E SE OUT DISPLAY SEGMENT e
7 F SF OUT DISPLAY SEGMENT f
8 G SG OUT DISPLAY SEGMENT g
9 VSS0 GND GND
10 VDD0 VDD VDD
11 KR4 KR4 IN KEY RETURN 4
12 KR10 KR10 IN
KEY RETURN (feed clerk
MRS sw)
13 KR11 KR11 IN KEY RETURN (MODE sw)
14 KR8 NU IN GND
15 HTS HTS IN
16 STH STH OUT
17 /SCK /SCK IN SHIFT CLOCK
18 ST0 ST0 OUT KEY STROBE 0
19 ST1 ST1 OUT KEY STROBE 1
20 ST2 ST2 OUT KEY STROBE 2
21 ST3 ST3 OUT KEY STROBE 3
22 ST4 ST4 OUT KEY STROBE 4
23 ST5 ST5 OUT KEY STROBE 5
24 VDD1 VDD VDD
25 AXSS GND GND
26 KR9 NU GND
27 KR0 KR0 IN KEY RETURN 0
28 KR1 KR1 IN KEY RETURN 1
29 KR2 KR2 IN KEY RETURN 2
30 KR3 KR3 IN KEY RETURN 3
31 KR5 KR5 IN KEY RETURN 5
32 KR6 KR6 IN KEY RETURN 6
NU
NU
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
BUZ
/POFF
NU
ST8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DP
SA
SB
SC
SD
SE
SF
SG
GND
VDD
KR4
KR10
KR11
NU
HTS
STH
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
ST7
ST6
/RESETS
/SHEN
ERC
LDRQ
GND
GND
/RES0
VDD
GND
KR7
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
/SCK
ST0
ST1
ST2
ST3
ST4
ST5
VDD
GND
NU
KR0
KR1
KR2
KR3
KR5
KR6
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
CKDC8
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