Read Sharp XE-A110 Service Manual online
2. CPU (LC8650) Pin configuration
NO.
PIN NAME
SIGNAL NAME
DESCRIPTION
IN/OUT
ACTIVE
Power interruption
(Used for timer interruption)
1
P10/SO0
RWND
REWIND MOTOR
OUT
HIGH
LOW
2
P11/SI0/SB0
MTR
MOTOR FOR M42V/M31
OUT
HIGH
LOW
3
P12/SCK0
TRG
PRINT SOLENOID
OUT
HIGH
LOW
4
P13/SO1
DR
DRAWER
OUT
HIGH
LOW
5
P14/SI1/SB1
NOT USED
OUT
LOW
LOW
6
P15/SCK1
NOT USED
OUT
LOW
LOW
7
P16/BUZ
BZ
BUZZER
OUT
HIGH/LOW
LOW
8
P17/PWM
NOT USED
OUT
LOW
LOW
9
TEST1
TEST
NOT USED
10
/RES
/RES
RESET
IN
LOW
IN
11
XT1
XT1
SUB CLOCK
12
XT2
XT2
SUB CLOCK
13
VSS
GND
GND
14
CF1
X1
MAIN CLOCK
15
CF2
X2
MAIN CLOCK
16
VDD
VDD
VDD
17
P80/AN0
KR1
KEY RETURN 1
IN
HIGH
IN
18
P81/AN1
KR2
KEY RETURN 2
IN
HIGH
IN
19
P82/AN2
KR3
KEY RETURN 3
IN
HIGH
IN
20
P83/AN3
KR4
KEY RETURN 4
IN
HIGH
IN
21
P84/AN4
KR5
KEY RETURN 5
IN
HIGH
IN
22
P85/AN5
KR6
KEY RETURN 6
IN
HIGH
IN
23
P86/AN6
NOT USED
IN
IN
24
P87/AN7
BAT
LOW/NO BATTERY CHECK
IN
IN
25
P70/INT0
/POF
POWER OFF CHECK
IN
LOW
IN
26
P71/INT1
T
TIMMING PULSE FOR M42V/M31
IN
LOW
IN
27
P72/INT2/TOIN
t
SUB TIMMING PULSE FOR M42V/31
IN
LOW
IN
28
P73/INT3/TOIN
IN
IN
29
P30
ST1
DISPAY COMMON 1 (OPEN DRAIN)
OUT
LOW
HIGH
30
P31
ST2
DISPAY COMMON 2 (OPEN DRAIN)
OUT
LOW
HIGH
31
P32
ST3
DISPAY COMMON 3 (OPEN DRAIN)
OUT
LOW
HIGH
32
P33
ST4
DISPAY COMMON 4 (OPEN DRAIN)
OUT
LOW
HIGH
33
P34
ST5
DISPAY COMMON 5 (OPEN DRAIN)
OUT
LOW
HIGH
34
P35
NOT USED
OUT
LOW
LOW
35
P36
NOT USED
OUT
LOW
LOW
36
P37
R
RESET PULSE FOR M42V/M31
IN
LOW
IN
37
P40
SA1
SEGMENT a1
OUT
HIGH
LOW
38
P41
SB1
SEGMENT b1
OUT
HIGH
LOW
39
P42
SC1
SEGMENT c1
OUT
HIGH
LOW
40
P43
SD1
SEGMENT d1
OUT
HIGH
LOW
41
P44
SE1
SEGMENT e1
OUT
HIGH
LOW
42
P45
SF1
SEGMENT f1
OUT
HIGH
LOW
43
P46
SG1
SEGMENT g1
OUT
HIGH
LOW
44
P47
SDP1
SEGMENT Dp1
OUT
HIGH
LOW
45
P50
SEL
MODEL SELECT
IN
HIGH/LOW
IN
46
P51
NOT USED
OUT
LOW
OUT
47
VSS
GND
GND
48
VDDVPP
VDD
VDD
49
P20
SA2
SEGMENT a2
OUT
HIGH
LOW
50
P21
SB2
SEGMENT b2
OUT
HIGH
LOW
51
P22
SC2
SEGMENT c2
OUT
HIGH
LOW
52
P23
SD2
SEGMENT d2
OUT
HIGH
LOW
53
P24
SE2
SEGMENT e2
OUT
HIGH
LOW
54
P25
SF2
SEGMENT f2
OUT
HIGH
LOW
55
P26
SG2
SEGMENT g2
OUT
HIGH
LOW
56
P27
SDP2
SEGMENT Dp2
OUT
HIGH
LOW
57
P00
KST1
KEY STROBE 1
OUT
HIGH
LOW
58
P01
KST2
KEY STROBE 2
OUT
HIGH
LOW
59
P02
KST3
KEY STROBE 3
OUT
HIGH
LOW
60
P03
KST4
KEY STROBE 4
OUT
HIGH
LOW
61
P04
KST5
KEY STROBE 5
OUT
HIGH
LOW
62
P05
KST6
KEY STROBE 6
OUT
HIGH
LOW
63
P06
KST7
KEY STROBE 7
OUT
HIGH
LOW
64
P07
KST8
KEY STROBE 8
OUT
HIGH
LOW
– 6 –
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