Read Sharp UP-600 / UP-700 (serv.man25) Service Manual online
3) Pin description
Pin
No.
Symbol
Signal
name
In/
Out
Function
1
/RES
/RESET
In
Reset signal
2
NMI
NMI
In
Non-maskable interrupt input
for SSP interrupt input.
for SSP interrupt input.
3
VSS
GND
In
GND
4
D0
D0
I/O
Data bus
5
D1
D1
I/O
Data bus
6
D2
D2
I/O
Data bus
7
D3
D3
I/O
Data bus
8
D4
D4
I/O
Data bus
9
D5
D5
I/O
Data bus
10
D6
D6
I/O
Data bus
11
D7
D7
I/O
Data bus
12
D8
D8
I/O
Data bus
13
D9
D9
I/O
Data bus
14
D10
D10
I/O
Data bus
15
D11
D11
I/O
Data bus
16
D12
D12
I/O
Data bus
17
D13
D13
I/O
Data bus
18
D14
D14
I/O
Data bus
19
D15
D15
I/O
Data bus
20
VSS
GND
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
GND
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
GND
In
GND
47
P30
/WAIT
In
Wait signal
48
P31
/BACK
Out
Bus control request
acknowledge signal
acknowledge signal
49
P32
/BREQ
In
Bus control request signal
50
P33
DOPS
In
Drawer open signal
51
P34
/DR0
Out
Option drawer open signal
52
P35
/DR1
Out
Option drawer open signal
53
P36
NC
NC
NC
54
P37
NC
NC
NC
55
VCC
VCC
In
+5V
56
P40
VCC
In
+5V
57
P41
GND
In
GND
58
P42
GND
In
GND
Pin
No.
Symbol
Signal
name
In/
Out
Function
59
P43
GND
In
GND
60
P44
MCRINT
In
MCR interrupt signal
61
P45
GND
In
GND
62
P46
/SHEN
In
CKDC interface shift enable
signal
signal
63
P47
GND
In
GND
64
VSS
GND
In
GND
65
P50
–
Out
/DTR2 : Data Terminal Ready2
66
P51
–
In
/DSR2 : Data Set Ready2
67
P52
–
In
/CTS2 : Clear To Send2
68
P53
–
In
/DCD2 : Carriar Detect2
69
P54
–
In
NC
70
P55
NC
Out
/RTS2:Request To Send2
71
P56
–
In
/CI2:Calling Indicator2
72
P57
/STOP
Out
System reset output signal
73
P60
/IPLON0
In
From IPL SW
74
P61
/IPLON1
In
From IPL SW
75
P62
GND
In
GND
76
P63
NORDY
In
Flash Memory ready ("H" active)
77
P64
FVPON
Out
Flash Memory write protect ("L"
active)
active)
78
P65
BANK
Out
For IPL ROM
79
P66
GND
In
GND
80
P67
GND
In
GND
81
VSS
GND
In
GND
82
AVSS
GND
In
GND
83
P70
GND
In
GND
84
P71
GND
In
GND
85
P72
GND
In
GND
86
P73
GND
In
GND
87
AVCC
VCC
In
+5V
88
VCC
VCC
In
+5V
89
/IRQ0
/IRQ0
In
Interrupt signal 0
90
/IRQ1
/IRQ1
In
Interrupt signal 1
91
/IRQ2
UASCK
In
Synchronizing shift clock signal
for USART
for USART
92
/IRQ3
SCKI
Out
CKDC interface synchronizing
shift clock
shift clock
93
RXD1
/RCVDT2
In
RXD signal for RS232
94
TXD1
TXD2
Out
TXD signal for RS232
95
RXD2
RXDI
In
CKDC interface shift input data
96
TXD2
TXDI
Out
CKDC interface shift output
data
data
97
VSS
GND
In
GND
98
EXTAL
EXTAL
In
Crystal oscillator connection
19.6MHz
19.6MHz
99
XTAL
XTAL
In
Crystal oscillator connection
19.6MHz
19.6MHz
100
VSS
GND
In
GND
101
X
#
Out
System clock
102
E
NC
NC
NC
103
/AS
/AS
Out
Address strobe
104
RD
/RD
Out
Read signal
105
/HWR
/HWR
Out
Write signal (HIGH)
106
/LWR
/LWR
Out
Write signal (LOW)
107
/RFSH
/RFSH
Out
Refresh cycle signal
108
VCC
VCC
In
+5V
109
MD0
IPLON0
In
From IPL SW
110
MD1
IPLON0
In
From IPL SW
111
MD2
/IPLON0
In
From IPL SW
112
/STBY
VCC
In
+5V
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