Service manual

Pin
No.
Signal
name
In/Out Function
130 GND — GND
131 GND — GND
132 GND — GND
133 BA6 O Address bus 6 for PB-RAM
134 BA5 O Address bus 5 for PB-RAM
135 BA4 O Address bus 4 for PB-RAM
136 BA3 O Address bus 3 for PB-RAM
137 BA2 O Address bus 2 for PB-RAM
138 BA1 O Address bus 1 for PB-RAM
139 PHAI I TPRC1 clock input pin (9.83 MHz)
140 Vcc — +5V
141 Vcc — +5V
142 Vcc — +5V
143 BA0 O Address bus 0 for PB-RAM
Pin
No.
Signal
name
In/Out Function
144 BD7 I/O Data bus 7 for PB-RAM
145 BD6 I/O Data bus 6 for PB-RAM
146 BD5 I/O Data bus 5 for PB-RAM
147 GND — GND
148 BD4 I/O Data bus 4 for PB-RAM
149 BD3 I/O Data bus 3 for PB-RAM
150 GND — GND
151 GND — GND
152 GND — GND
153 BD2 I/O Data bus 2 for PB-RAM
154 BD1 I/O Data bus 1 for PB-RAM
155 BD0 I/O Data bus 0 for PB-RAM
156 BRAS O PB-RAM chip select: Active HIGH (Nu)
157
BRAS O PB-RAM chip select: Active LOW
158
RESET I TPRC1 reset signal
159 GND — GND
160 NU — GND
2-5. OPC2
1) Pin configuration
1
SL00
2
SL01
3
SL02
4
SL10
5
SL11
6
SL12
7
SL20
8
SL21
9
SL22
10
SL30
11
SL31
12
13
/CD0
14
BRK0
15
TRNEMP0
16
RCVRDY0
17
TRNRDY0
18
/CTS0
19
RCVDT0
20
VCC
21
GND
22
/CI0
23
/RTS0
24
/CS0
25
/CD1
26
BRK1
27
TRNEMP1
28
RCVRDY1
29
TRNRDY1
30
/CTS1
31
32
33
/RTS1
34
35
36
TRNEMP2
37
RCVRDY2
38
TRNRDY2
39
CTS2Z
40
RCVDT2
160
MCLK
159 158
RSLCT1
157
RSLCT0
156
/RIN
155
/WIN
154
SYCBKD
153
TRNEMPD
152
RCVRDYD
151
TRNRDYD
150
/DSRD
149
/CTSD
148
RCVDTD
147
/RTSD
146
/DTRD
145
TRNDTD
144
/CSD
143
GND
142
VCC
141
SYCBKC
140
TRNEMPC
139
RCVRDYC
138
TRNRDYC
137
/DSRC
136
/CTSC
135
RCVDTC
134
/RTSC
133
/DTRC
132
TRNDTC
131
/CSC
130
GND
129
SYCBKB
128
TRNEMPB
127
RCVRDYB
126
TRNRDYB
125
/DSRB
124
/CTSB
123
RCVDTB
122
/RTSB
121
/DTRB
41
/CI2
42
/CS2
43
/CD3
44
BRK3
45
TRNEMP3
46
RCVRDY3
47
TRNRDY3
48
/CTS3
49
RCVDT3
50
/CI3
51
/CS3
52
D0
53
D1
54
D2
55
D3
56
GND
57
D4
58
D5
59
D6
60
D7
61
GND
62
VCC
63
X1
64
X2
65
XOUT
66
TRCK
67
AB0
68
AB1
69
US1CH
70
PX
71
/POF
72
/RSRQ
73
/TRV
74
RXDATA0
75
TXE
76
/TRRQ
77
/TRQ1
78
/TRQ2
79
A0
80
A1
120
TRNDTB
119
/CSB
118
GND
117
SYCBKA
116
TRNEMPA
115
RCVRDYA
114
TRNRDYA
113
/DSRA
112
/CTSA
111
RCVDTA
110
/RTSA
109
/DTRA
108
TRNDTA
107
/CSA
106
UTST
105
DBTST
104
RCVCLK
103
TRNCLK
102
RES
101
GND
100
VCC
99
/W
98
/R
97
DB7
96
DB6
95
DB5
94
DB4
93
92
91
90
DB1
89
DB0
88
/RES
87
/WR
86
/RD
85
/OPTCS
84
A5
83
A4
82
A3
81
A2
GND
RST
SL32
RCVDT1
/CI1
/CS1
/CD2
DB2
DB3
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