Read Sharp UP-600 / UP-700 (serv.man25) Service Manual online
3) Pin description
Pin
No.
Name
IN/OUT
Description
1
GND
-
GND
2
GND
-
GND
3
BA7
O
Address bus 7 for PB-RAM
4
BA6
O
Address bus 6 for PB-RAM
5
BA5
O
Address bus 5 for PB-RAM
6
BA4
O
Address bus 4 for PB-RAM
7
BA3
O
Address bus 3 for PB-RAM
8
BA2
O
Address bus 2 for PB-RAM
9
BA1
O
Address bus 1 for PB-RAM
10
GND
-
GND
11
BA0
O
Address bus 0 for PB-RAM
12
BWR#
O
PB-RAM write strobe signal
13
BRD#
O
PB-RAM read strobe signal
14
BRAS
O
PB-RAM chip select : Active High (NU)
15
BRAS#
O
PB-RAM chip select : Active Low
16
BD7
I/O
Data Bus 7 for PB-RAM
17
BD6
I/O
Data Bus 6 for PB-RAM
18
BD5
I/O
Data Bus 5 for PB-RAM
19
GND
-
GND
20
BD4
I/O
Data Bus 4 for PB-RAM
21
BD3
I/O
Data Bus 3 for PB-RAM
22
GND
-
GND
23
BD2
I/O
Data Bus 2 for PB-RAM
24
BD1
I/O
Data Bus 1 for PB-RAM
25
BD0
I/O
Data Bus 0 for PB-RAM
26
GND
-
GND
27
VDD
-
+3.3V
28
INT3#
I
Interrupt signal 3 (NU)
29
INT2#
I
Shift enable for CKDC9
30
INT1#
I
Keyboard request for CKDC9
31
INT0#
I
Power off signal input
32
HTS1
O
8 bit serial port output (for CKDC9)
33
SCK1#
O
Serial port shift clock output (for CKDC9)
34
STH1
I
8 bit serial port input (for CKDC9)
35
IPLON#
I
IPL switch 0 ON signal
36
RESET#
I
MPCA reset
37
UTST#
I
MPCA test pin (+3.3V)
38
USEL0
I
MPCA test pin (GND)
39
USEL1
I
MPCA test pin (GND)
40
USEL2
I
MPCA test pin (GND)
41
MCRINT
O
MCR interrupt signal
42
WAIT#
O
Wait request signal
43
FROS1#
O
Flash ROM 1 chip select signal
44
RASPN1
O
RAM 1 chip select signal
45
RASPN2
O
RAM 2 chip select signal
46
EPROM1#
O
EP-ROM 1 chip select signal
47
DSEX#
O
EP-ROM 2 chip select signal
48
RXDH
O
8 bit serial port output to CPU
49
TXDH
I
8 bit serial port input from CPU
50
SCKH
I
Serial port shift clock input from CPU
51
GND
-
GND
52
GND
-
GND
53
VDD
-
+3.3V
54
OSO1
O
System clock (7.37MHz)
Pin
No.
Name
IN/OUT
Description
55
OSI1
I
System clock (7.37MHz)
56
GND
-
GND
57
UASCK
O
USAT clock to CPU
58
MD1
I
MPCA test pin (GND)
59
MD0
I
MPCA test pin (GND)
60
PHAI
I
System clock (9.83MHz)
61
AS#
I
Address strobe
62
RD#
I
Read Strobe
63
WR#
I
Write Strobe
64
IRQ0#
O
Interrupt request 0 to CPU
65
IRQ1#
O
Interrupt request 1 to CPU
66
SSPRQ#
O
SSP interrupt request to CPU
67
GND
-
GND
68
D0
I/O
Data Bus 0
69
D1
I/O
Data Bus 1
70
D2
I/O
Data Bus 2
71
GND
-
GND
72
D3
I/O
Data Bus 3
73
D4
I/O
Data Bus 4
74
GND
-
GND
75
D5
I/O
Data Bus 5
76
D6
I/O
Data Bus 6
77
D7
I/O
Data Bus 7
78
VDD
-
+3.3V
79
GND
-
GND
80
A0
I
Address bus 0
81
A1
I
Address bus 1
82
A2
I
Address bus 2
83
A3
I
Address bus 3
84
A4
I
Address bus 4
85
A5
I
Address bus 5
86
A6
I
Address bus 6
87
A7
I
Address bus 7
88
A8
I
Address bus 8
89
A9
I
Address bus 9
90
A10
I
Address bus 10
91
A11
I
Address bus 11
92
A12
I
Address bus 12
93
A13
I
Address bus 13
94
A14
I
Address bus 14
95
A15
I
Address bus 15
96
A16
I
Address bus 16
97
A17
I
Address bus 17
98
A18
I
Address bus 18
99
A19
I
Address bus 19
100
A20
I
Address bus 20
101
A21
I
Address bus 21
102
A22
I
Address bus 22
103
A23
I
Address bus 23
104
VDD
-
+3.3V
105
GND
-
GND
106
GND
-
GND
107
CD5#
I
RS-232 ch1 CD signal
108
CI5#
I
RS-232 ch1 CI signal
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