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4-7
Ball
No.
Line Name
Description
I/O
A4
R_LV
Lock voltage input. (Band B)
I
A6
VIN
External power supply voltage.
I
A7
L_WXALT
WX alert signal (1050 Hz). (Band
A)
I
A8
MICUD
The [UP]/[DOWN] key input from
the microphone.
I
A9
AUDI
Response signal from the audio
IC.
I
A11
PSC
5VS power supply line control.
L= While in the power save mode.
O
A12
DA_STB
D/A converter serial strobe.
O
B1
DTMF
DTMF tone, European tone and
beep sound signals.
O
B4
R_RSSI
RSSI voltage. (Band B)
I
B7
IDET
Transmit current sensing voltage.
I
B8
TEMP
Transceiver temperature sensing
voltage.
I
B9
AURES
Audio IC reset.
L=Reset.
O
C2
DTCS
TSQL/DTCS tone fi lter switching
control.
H= While the DTCS tone is used.
O
C4
R_DTCSIN
TSQL/DTCS tone signal. (Band
B)
I
C7
L_DTCSIN
TSQL/DTCS tone signal. (Band
A)
I
C9
DTMUTE
Tone signal (BEEP/DTMF/
ETONE) modulation mute.
L=Mute.
O
C11
DSP_PD
DSP power down control.
H= Power down.
O
D1
DA_DATA
Serial data to the D/A converter.
O
D2
BTRXD
Serial data from the Bluetooth
®
unit.
I
D4
R_WXALT
Weather alert signal (1050 Hz)
detect. (Band B)
I
D5
R_LV
Lock voltage. (Band B)
I
D6
VOX
VOX sensing voltage.
I
D7
L_RSSI
RSSI voltage. (Band A)
I
D8
AUSTB
Audio IC serial strobe.
O
D11
DA_CK
Serial clock to the D/A converter.
O
E4
BTTXD
Serial data to the Bluetooth
®
unit.
O
G1
RESET
CPU reset signal.
L=Reset.
I
G3
BT_RES
Bluetooth
®
unit reset signal.
H=Reset.
O
G4
MIC_PTT
PTT input from the microphone.
I
H14
SCSCK
Serial clock to the sub CPU
(IC303).
O
H15
SCRXD
Serial data from the sub CPU
(IC303).
I
J4
RTC_IRQ
Interrupt detection from the real
time clock IC.
L= Alerm detected.
I
J12
BWD
The [RWD] key input from the Blu-
etooth
®
unit.
L=When pushed.
I
J13
BTPLAY
The [PLAY] key input from the Blu-
etooth
®
unit.
L=When pushed.
I
Ball
No.
Line Name
Description
I/O
J15
BT_SW
Bluetooth
®
unit power supply con-
trol.
H= The Bluetooth
®
unit is acti-
vated.
O
K1
L_SQL
Noise level detection. (Band A)
H= Noise signal is detected.
I
K3
IOSTB
Expander serial strobe.
O
K14
FWD
The [FWD] key input from the Blu-
etooth
®
unit.
L=When pushed.
I
K15
IOEN
Expander chip enable.
O
M1
98_DATA
Control serial data from the micro-
phone.
I
M2
TX_DATA
Control serial data to the CPU on
the CONTROL UNIT.
O
M5
DSP_STB
DSP serial strobe.
O
M7
ECK
EEPROM serial clock.
O
M8
L_UNLK
PLL unlock detection. (Band A)
L=Unlocked.
I
M9
VOL_DATA
Serial data to the audio volume
IC.
O
M12
TX232
UART data (RS-232C).
(4800/9600/38400 bps)
O
N1
RX_DATA
Control serial data from the CPU
on the CONTROL UNIT.
I
N2
SD_SENC
SD card insert detection.
L=Inserted.
I
N3
SD_TXD
Serial data to the SD card.
O
N4
DSP_SI
DSP serial data.
I
N5
CLIN
CI-V/CLONE UART data.
(300–38400 bps)
I
N6
RTC_SDA
Serial data to/from the real time
clock IC.
I/O
N7
ESIO
EEPROM serial data.
I/O
N9
VOL_CK
Serial clock to the audio volume
IC.
O
N12
DATA
Common serial clock to the D/A
converter and expander.
O
N13
SCTXD
Serial data to the sub CPU
(IC303).
O
P1
SD_CS
Chip select to the SD card.
O
P2
SD_SCK
Serial clock to the SD card.
O
R8
R_UNLK
PLL unlock detection. (Band B)
L=Unlocked.
I
K4
DSP_REQ
DSP "REQEST" signal.
I
P4
DSP_CK
DSP serial clock.
O
P5
PDV
Power supply voltage drop detect.
I
P6
H_PTT
[PTT] input from the Bluetooth
®
unit.
L=Pushed.
I
P7
SD_SW
SD card driver power supply con-
trol.
H=SD card driver is activated.
O
P10
SCACK
"ACK" signal from the sub CPU.
I
P12
BTUNIT
Bluetooth
®
unit mount detect.
L=Mounted.
I
P13
RX232
RS-232C UART data.
(4800/9600 bps)
I
R1
SD_RXD
Serial data from the SD card.
I
R2
DSP_SO
DSP serial data.
O
• MAIN CPU (MAIN UNIT: IC300)