– 18 –
Pin No.
Pin Name
I/O
Pin Description
86
EXTAL
O
System clock signal output (18.432 kHz)
87
VSS
—
Ground
88
Ø
—
Test pin (Open)
89
VCC
—
Power supply pin (+5 V)
90
AS
O
Address strobe signal output (Open)
91
RD
O
Read signal output
92
HWR
O
High light signal output
93
LWR
O
Low light signal output
94
LNKOFF
O
Serial bus link signal output. H : Link off, L : Link on
95
XUNI SEL CTL
O
Audio select signal output. L : Communication, H : DAB
96
ERR XFLASH
O
External output terminal for power supply. L : Communication, H : BER
97
EXTSO
O
Communication data signal output
98
EXTSI
I
Communication data signal input
99, 100
VSS
—
Ground
101
P5 2
O
Test pin (Open)
102
MBUS CTL
O
M BUS mode control signal output. H : Address, L : DATA
103
AVCC
—
Power supply pin (+5 V)
104
VREF
I/O
Reference voltage signal input/output
105
BU IN
I
Battry power supply check signal input
106
S IN
I
Serial data signal input
107
HR FLGIN
I
HR FLG signal input
108
AOUT CTRLIN
I
Audio out set up signal input. L : Digital, L : Analog
109
P4 4
I
Reserve input pin
110
P4 5
I
Reserve input pin
111
TEST MODEIN
I
Test mode select signal input. H : Test mode
112
AGC WATCHIN
I
AGC A/D signal input
113
AVSS
—
Ground
114
VSS
—
Ground
115
POWER DON
O
Digital power supply ON/OFF select signal output
116
SLAVE ON
O
Slave power supply ON/OFF select signal output
117
POWER AON
O
Analog power supply ON/OFF select signal output
118
DAB SEKOUT
O
Channel seek signal output
119
DAB BAND
O
L band, band III signal output
120
ANTREM
O
ANT remote ON/OFF select signal output. H : ON
121
I2CSO
O
PLL signal output
122
I2CCKO
O
PLL signal output
123 – 125
MD0 – 2
I
CPU mode set up signal input
126
PG0
O
Output port reserve signal output
127
XROM CS
O
Chip enable signal output
128
XRAM CS
O
Chip enable signal output
