Read Sharp ER-A570 (serv.man7) Service Manual online
3) Pin description
Pin
No.
Symbol
Signal
name
In/
Out
Function
1
RES
RESET
I/O
Reset input
2
NMi
NMi
In
Non-maskable interrupt input
for SSP interrupt input.
for SSP interrupt input.
3
VSS
NU
In
GND
4
D0
Nu
In
GND
5
D1
Nu
In
GND
6
D2
Nu
In
GND
7
D3
Nu
In
GND
8
D4
Nu
In
GND
9
D5
Nu
In
GND
10
D6
Nu
In
GND
11
D7
Nu
In
GND
12
D8
D0
I/O
Data bus
13
D9
D1
I/O
Data bus
14
D10
D2
I/O
Data bus
15
D11
D3
I/O
Data bus
16
D12
D4
I/O
Data bus
17
D13
D5
I/O
Data bus
18
D14
D6
I/O
Data bus
19
D15
D7
I/O
Data bus
20
VSS
NU
In
GND
21
A0
A0
Out
Address bus
22
A1
A1
Out
Address bus
23
A2
A2
Out
Address bus
24
A3
A3
Out
Address bus
25
A4
A4
Out
Address bus
26
A5
A5
Out
Address bus
27
A6
A6
Out
Address bus
28
A7
A7
Out
Address bus
29
A8
A8
Out
Address bus
30
A9
A9
Out
Address bus
31
A10
A10
Out
Address bus
32
A11
A11
Out
Address bus
33
A12
A12
Out
Address bus
34
A13
A13
Out
Address bus
35
A14
A14
Out
Address bus
36
A15
A15
Out
Address bus
37
VSS
NU
In
GND
38
A16
A16
Out
Address bus
39
A17
A17
Out
Address bus
40
A18
A18
Out
Address bus
41
A19
A19
Out
Address bus
42
A20
A20
Out
Address bus
43
A21
A21
Out
Address bus
44
A22
A22
Out
Address bus
45
A23
A23
Out
Address bus
46
VSS
NU
In
GND
47
WAIT
WAIT
In
Wait signal
48
BACK
BACK
Out
Bus control request
acknowledge
acknowledge
49
BREQ
BREQ
In
Bus control request
50
P33
DOPS
In
Drawer open signal
51
P34
DR0
Out
Option drawer open signal
52
P35
DR1
Out
Remote drawer No.1 open
signal
signal
Pin
No.
Symbol
Signal
name
In/
Out
Function
53
P36
DR2
Out
Remote drawer No.2 open
signal
signal
54
P37
DR3
Out
Remote drawer No.3 open
signal
signal
55
VCC
VCC
In
+5V
56
P40
IFV
In
Slip printer (M-240) interface
connect signal
connect signal
57
TMCi
PTMG
In
Printer (M-820) timing signal
58
P42
TOF
In
Slip printer (M-240) TOF
sensor signal
sensor signal
59
P43
BOF
In
Slip printer (M-240) BOF
sensor signal
sensor signal
60
FTi1
PRST
In
Printer (M-820) reset signal
61
P45
NEJ
In
Near end sensor journal side
62
FTi2
SHEN
In
CKDC Interface shift enable
signal
signal
63
P47
NER
In
GND
64
VSS
VSS
In
GND
65
P50/FTCA1 TRGI
Out
Dot pulse adjust signal
66
P51
NU
Out
NC
67
P52
NU
Out
NC
68
P53
NU
In
GND
69
P54
NU
Out
NC
70
FMRS
NU
In
NC
71
P56
NU
Out
NC
72
P57/STOP
STOP
Out
System reset output. Normally
73
P60/ER
ERS/ER
Out
SIO control signal (Equipment
ready)
ready)
74
P61/DR
DRS/DR
In
SIO control signal
(Data set ready)
(Data set ready)
75
P62/CS
CSS/CS
In
SIO control signal
(Clear to send)
(Clear to send)
76
P63/CD
CDS/CD
In
SIO control signal
(Carrier detect)
(Carrier detect)
77
P64/RR
RRS/RR
Out
SIO control signal
(Ready to receive)
(Ready to receive)
78
P65/RS
RSS/RS
Out
SIO control signal
(Request to send)
(Request to send)
79
P66
NU
In
GND
80
P67
NU
In
GND
81
VSS
NU
In
GND
82
AVSS
NU
In
GND
83
AN0
VPR
In
Validation sensor journal
84
AN1
VPJ
In
Validation sensor receipt
85
AN3
VPTEST
In
+24V test input
86
P73
VPPS
In
Validation sense signal
87
AVCC
AVCC
In
+5V
88
VCC
VCC
In
+5V
89
IRQ0
IRQ0
In
Interrupt signal 0
90
IRQ1
IRQ1
In
Interrupt signal 1
91
IRQ2
IRQ2
In
Interrupt signal 2
92
SCK2
SCKi
In
CKDC Interface sync shift
clock
clock
93
RXD1
RXD
In
SIO control signal
(Receive data)
(Receive data)
94
TXD1
TXD
Out
SIO control signal
(Transmit data)
(Transmit data)
12
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