PH-2761C
- 3 -
EXPLANATION OF IC
052-3197-21
uPD703272YGC324-8EAA
System Contoller
Terminal Description
pin
1: A Vref 0
: - : Reference voltage for the internal ADC.
pin
2: A VSS
: - : Negative voltage supply for analog section.
pin
3: ANC CHK
: O : This pin outputs H on testing.
pin
4: ANC OFF
: O : This pin outputs H without ANC-connec-
tion.
pin
5: A Vref 1
: - : Reference voltage for the internal DAC.
pin
6: DSP RESET
: O : Reset signal output to the DSP IC.
pin
7: DSP INIT
: IN : The initial finished signal input from the
Radio-Audio-DSP.
pin
8: FLMDO
: O : Connect to the ground to standard motion.
pin
9: VDD
: - : Positive voltage supply.
pin 10: REG C
: - : The capacitor connection.
pin 11: VSS
: - : Negative voltage supply.
pin 12: X 1
: - : The crystal connection.
pin 13: X 2
: - : The crystal connection.
pin 14: RESET
: IN : Reset signal input.
pin 15: XT 1
: - : Crystal connection.
pin 16: XT 2
: - : Crystal connection.
pin 17: RDBS DATA
: IN : RDBS data input.
pin 18: BU DET
: IN : Backup detection signal input.
pin 19: ACC DET
: IN : ACC detection signal input.
pin 20: RDBS CLCK
: IN : RDBS clock input.
pin 21: SPEED PULSE : IN : The speed pulse input.
pin 22: TUNE DATA
: O : I2C data output for BUS Tuner.
pin 23: TUNE CLK
: O : I2C clock output for BUS Tuner.
pin 24: CATS KEY
: IN : The treasure key signal input for CATS.
pin 25: FLASH TX
: O : The serial data output for the flash mem-
ory.
pin 26: FLASH RX
: IN : The serial data input for the flash memo-
ry.
pin 27: ILL PWM
: IN : The illumination PWM input.
pin 28: CMS 1
: IN : The keyless entry setting terminal.
pin 29: CMS 2
: IN : The keyless entry setting terminal.
pin 30: LCD Bk Light
: O : LCD back light ON signal output.
pin 31: GA-NET TX
: O : The serial data output for GA-NET.
pin 32: GA-NET RX
: IN : The serial data input for GA-NET.
pin 33: E VSS
: - : Ground.
pin 34: E VDD
: - : Positive voltage supply.
pin 35: K-LINE TX
: O : K-LINE data output.
pin 36: K-LINE RX
: IN : K-LINE data input.
pin 37: LCD BL PULSE : O : LCD back light control-pulse output.
pin 38: ILL PWM
: O : The brightness control signal output for
the illumination.
pin 39: LCD CE 1
: O : Chip enable signal output to LCD driver.
pin 40: LCD DI
: IN : The srial data input from the LCD driver.
pin 41: LCD DO
: O : The srial data output to the LCD driver.
pin 42: LCD CLK
: O : The clock pulse output to the LCD driver.
pin 43: DSP DATA
: O : Serial data output to the digital signal pro-
cessor.
pin 44: DSP CLK
: O : The clock pulse output to DSP.
pin 45: LCD CE 2
: O : Chip enable signal output to LCD driver.
pin 46: LCD RESET
: O : Reset pulse output to LCD.
pin 47: VR A IN
: IN : The pulse signal input from the rotary
encoder.
pin 48: VR B IN
: IN : The pulse signal input from the rotary
encoder.
pin 49: TN A IN
: IN : The pulse signal input from the rotary
encoder.
pin 50: TN B IN
: IN : The pulse signal input from the rotary
encoder.
pin 51: CATS IND
: O : CATS indicator control signal output.
pin 52: CD 1.5V
: O : 1.5V power supply control signal output.
pin 53: MP3 DI
: IN : MP3 serial data input.
pin 54: MP3 DO
: O : MP3 serial data output.
pin 55: MP3 CLCK
: O : MP3 clock output.
pin 56: ILL DET
: IN : Illumination ON signal input.
pin 57: EJECT SW
: IN : Eject switch signal input.
pin 58: SBSY
: IN : Sub code block synchronous signal detec-
tion input.
pin 59: LD MUTE
: O : Muting signal output to the CD mecha-
nism.
pin 60: LD CONT
: O : Loading control signal output.
pin 61: TR A
: IN : Photo sensor signal input from the CD
mechanism.
pin 62: TR B
: IN : Photo sensor signal input from the CD
mechanism.
pin 63: CHU SW
: IN : CD disc chucking signal input.
pin 64: S STOP
: IN : Inside limit signal input from the CD mech-
anism.
pin 65: BUS 0
:I/O: CD IC Data input / output.
pin 66: BUS 1
:I/O: CD IC Data input / output.
pin 67: BUS 2
:I/O: CD IC Data input / output.
pin 68: BUS 3
:I/O: CD IC Data input / output.
pin 69: B VSS
: - : Ground for the bus interface section.
pin 70: B VDD
: - : Positive voltage supply for the bus inter-
face section.
pin 71: CD RESET
: O : The reset pulse output to the CD IC.
pin 72: CCE
: O : The chip enable signal output.
pin 73: BUC CLOCK
: O : CD IC clock pulse output.
pin 74: MP3 RAM STB : O : MP3 RAM standby output.
pin 75: MP3 REQ
: IN : MP3 request input.
pin 76: NU
: - : Not in use.
pin 77: MP3 RESET
: O : MP3 reset output.
pin 78: MP3 STB
: O : MP3 standby output.
pin 79: MP3 CS
: O : MP3 chip selection signal output.
pin 80: MP3 LP
: O : MP3 latch pulse output.
pin 81: MP3 ACK
: IN : MP3 acknowledge input.
pin 82: EEP ROM CE
: O : The chip enable signal output to the EEP-
ROM.
pin 83: EEP ROM CLK : O : The clock pulse output to the EEP-ROM.
pin 84: EEP ROM DI
: IN : The serial data input from the EEP-ROM.
pin 85: EEP ROM DO
: O : The serial data output to the EEP-ROM.
pin 86: CD 8V
: O : 8V power supply control signal output.
pin 87: CD 3.3V
: O : 3.3V power supply control signal output.
pin 88: DSP 3.3V
: O : 3.3V power supply control signal output.
pin 89: SYS ON
: O : System ON signal output.
pin 90: TUNER ON
: O : The tuner ON signal output.
pin 91: REM 5V
: O : Power ON signal output to the 5V and
3.3V supply circuit.
pin 92: POWER STB
: O : The standby signal output to Power IC.
pin 93: POWER MUTE : O : The mute signal output to Power IC.
pin 94: POWER DIAGI : IN : The diagnosis signal input from Power IC.
pin 95: AUX DET
: IN : AUX detection signal input.
pin 96: ANC DET
: IN : ANC detection signal input.
pin 97: HFT MUTE
: IN : HFT level-detection for mute.
pin 98: PAS MUTE
: IN : PAS level-detection for mute.
pin 99: TEL MUTE
: IN : Telephone mute command input.
pin100: ST REMO
: IN : Steering wheel remote control detection.
