4 - 13
18
19
24
25
26–28
35
36
25
Input port for the USB reset signal.
Input port for the USB suspend signal.
Outputs recording/playing select sig-
nal.
Input port for the ADPCM command
waiting signal.
Input ports for the ADPCM buffer sig-
nals.
Output recording mute signals.
Input port for the power supply verify-
ing signal.
4-5-2 SUB CPU PORT ALLOCATIONS
(REC UNIT; IC2)
RSTO
PWREN
FIFOST
CBUSY
EMP
MID
FUL
B_SQL
A_SQL
SUB_3C
Pin
Port
Description
number
name
4
5
6
7
11
12
13
14
Outputs the down converter control
signal.
Outputs 2002 MHz LO select signal for
the down converter.
Outputs 1001 MHz LO select signal for
the down converter.
Outputs the bar antenna select signal.
High : The bar antenna is selected.
Outputs the power save control signal
to the A-BAND circuit.
Low : While the A-BAND circuit is
power saving.
Outputs WFM mode select signal at
the A-BAND circuit.
Outputs noise blanker control signal.
Outputs the power save control signal
to the B-BAND circuit.
Low : While the B-BAND circuit is
power saving.
DOWN_CONV
2GLO
1GLO
ANTSW
APS
A_WFM
NBC
BPS
Pin
Port
Description
number
name
4-5-3 EXPANDER IC PORT ALLOCATIONS
(RF UNIT; IC22)
2
3
4
6
7
13
18
19
Outputs VHF band selecting signal at
the A-BAND circuit.
Outputs 300 MHz band selecting sig-
nal at the A-BAND circuit.
Outputs UHF band selecting signal at
the A-BAND circuit.
Outputs the A-BAND 1st LO circuit
control signal.
Outputs narrow FM mode selecting
signal at the A-BAND circuit.
Outputs ANL (Automatic Noise Limiter)
control signal at A-BAND circuit.
High : While ANL is ON.
Outputs AM mode selecting signal at
the A-BAND circuit.
Outputs narrow SSB mode selecting
signal at the A-BAND circuit.
A_VHFC
A_300MC
A_UHFC
A_VCO3
A_NFMC
A_ANLC
A_AMC
SSBC
Pin
Port
Description
number
name
4-5-4 D/A CONVERTER IC PORT ALLOCATIONS
(RF UNIT; IC14)
2
3
4
5
7
8
9
18
19
Outputs VHF band selecting signal at
the B-BAND circuit.
Outputs UHF band selecting signal at
the B-BAND circuit.
Outputs GHz band selecting signal at
the B-BAND circuit.
Outputs 800 MHz band selecting sig-
nal at the B-BAND circuit.
Outputs wide FM mode selecting sig-
nal at the B-BAND circuit.
Outputs the B-BAND 1st LO circuit
control signal.
Outputs ANL (Automatic Noise Limiter)
control signal at B-BAND circuit.
High : While B-BAND ANL is ON.
Outputs AM mode selecting signal at
the B-BAND circuit.
Outputs narrow AM or narrow FM
mode selecting signal at the B-BAND
circuit.
B_VHFC
B_UHFC
B_GC
B-800MC
A_WFMC
B_VCO1
B_ANLC
A_AMC
B_AM_FM
Pin
Port
Description
number
name
4-5-5 D/A CONVERTER IC PORT ALLOCATIONS
(RF UNIT; IC20)
