Main Cpu (Main Unit:ic300) - Icom ID-5100E Service Manual

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