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)