Service Manual

No.
1/0
Pin Name
Function
104
-
VCC(PLL)I2
Power
supply (5V) of built-in PLL
105
I MDO
Operation mode pin
106
-
VSS(PLL)I5
Power supply (OV) of built-in PLL
107 I MDI
Operation mode pin
108
0
CAP!
External capacitor connection pin for PLL
109 CAP2
110
I
MD2
Operation mode pin
Ill
0
CKPACKN
Clock pause acknowledge output
112 I
CKPREQN
Clock pause request input
113
-
VCC13
Power supply (5V)
114
-
N.C
Not connected.
115
-
VSS16
Power
supply (OV)
116
-
N.C
Not connected.
117
I
MD3
Operation mode pin
118
I/0
CKIO
System clock input/output
119
I
MD4
Operation mode pin
120
MD5
121 - VSSI7 Power supply (OV)
122
I
RES
Reset
123
-
VCC14
Power supply (5V)
124
0
IVECF
Interrupt vector fetch cycle
125
I
NMI
Non-maskable interrupt request
126
IRL3
127
I
IRL2
External interruput factor input
128
IRLI
129
IRLO
130
I/0
DO
Data bus
131
Dl
132
-
VCC15 Power supply (5V)
133
I/0
D2
Data bus
134
-
VSS18
Power
supply (OV)
135
D3
136
1/0
D4
Data bus
137
D5
138
D6
139
-
VCCI6
Power supply (5V)
140
1!0
D7 Data bus
141
-
VSSI9
Power supply (OV)
142
D8
143
1!0
D9
Data bus
144
DIO
-34-