Sharp ER-A750 Service Manual page 41
For "u" & "a" version
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Also See for ER-A750:
- Programming manual (40 pages) ,
- Installation manual (2 pages) ,
- Programming manual (40 pages)
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4) Pin description
OPC1 pin table
No.
Pin No.
Pin name
1
80
SL00
2
79
SL01
3
78
SL02
4
77
SL10
5
76
SL11
6
75
SL12
7
95
SL20
8
96
SL21
9
52
SL22
10
54
SL30
11
93
SL31
12
94
SL32
13
36
CS0-
14
32
CS1-
15
2
CS2-
16
1
CS3-
17
81
CD0-
18
46
CD1-
19
88
CD2-
20
38
CD3-/P0-
21
82
CTS0-
22
47
CTS1-
23
86
CTS2-
24
43
CTS3-/P1-
25
48
CI0-
26
45
CI1-
27
87
CI2-
28
99
CI3-/P2I
29
55
BRK0
30
70
BRK1
31
27
POFF-
32
4
BRK3
33
57
RCVRDY0
34
72
RCVRDY1
35
74
RCVRDY2
36
6
RCVRDY3
37
59
TRNRDY0
38
71
TRNRDY1
39
98
TRNRDY2
40
5
TRNRDY3
41
56
TRNEMP0
42
60
TRNEMP1
43
100
TRNEMP2
44
3
TRNEMP3
45
58
RCVDT0
46
73
RCVDT1
47
97
RCVDT2
48
41
RCVDT3
49
20
RSRQ-
50
83
TRV-
51
7
RXDATA0
52
42
TXE
53
84
TRRQ-
The signals marked with "-" at the end are LOW active signals. Example: "CS1-" = "CS1"
I/O
Pin
ER-A750
I
ICU
+5V
I
ICU
GND
I
ICU
GND
I
ICU
GND
I
ICU
+5V
I
ICU
GND
I
ICU
GND
I
ICU
GND
I
ICU
GND
I
ICU
GND
I
ICU
GND
I
ICU
GND
O
O
CS1-
O
O
CS2-
O
O
NC
O
O
SRCS
I
IS
DCD1-
I
IS
DCD2-
I
IS
+5V
I
IS
SINT
I
IS
CTS1-
I
IS
CTS2-
I
IS
+5V
I
IS
GND
I
IS
CI1-
I
IS
CI2-
I
IS
+5V
I
IS
GND
I
ISC
BRK1
I
ISC
BRK2
I
IS
POFF-
I
IS
GND
I
ISC
RCVRDY1
I
ISC
RCVRDY2
I
ISC
GND
I
IS
GND
I
ISC
TRNRDY1
I
ISC
TRNRDY2
I
ISC
GND
I
IS
GND
I
ISC
TRNEMP1
I
ISC
TRNEMP2
I
ISC
GND
I
IS
+5V
I
ISC
RCVDT1
I
ISC
RCVDT2
I
ISC
+5V
I
IS
GND
O
3S
RSRQ-
I
ISC
GND
O
O
NC
O
O
SRESET
O
3S
TRQ2
RS-232/UNIT0 channel select
RS-232/UNIT1 channel select
RS-232/UNIT2 channel select
RS-232/UNIT3 channel select
RS-232 USART chip select
RS-232/INLINE USART chip select
RS-232 control signal CD- input
RS-232 CD-/INLINE P0-
RS-232 control signal CTS- input
RS-232 CTS-/INLINE P1-
RS-232 control signal CI- input
RS-232 CI-/INLINE P2I
RS-232 USART BREAK signal
POFF signal (LOW: P-OFF, HIGH: P-ON)
RS-232/INLINE USART BREAK signal
RS-232 USART RCVRDY signal
RS-232/INLINE USART RCVRDY signal
RS-232 USART TRNRDY signal
RS-232/INLINE USART TRNRDY signal
RS-232 USART TRNEMP signal
RS-232/INLINE USART TRNEMP signal
RS-232 RCVDT signal (LOW: TIMER START)
RS-232/INLINE RCVDT signal
RS-232 IRQ- signal
INLINE YES/NO
INLINE RXDATA OUT
INLINE TRNS ENABLE
INLINE IRQ- signal
7 – 11
Description
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