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.
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