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PN-2591M-G
EXPLANATION OF IC
052-3180-10 M30620MCA-8R3GP System Controller
1.Terminal Description
pin 1: LCD CLK : O : The clock pulse output to the LCD driver.
pin 2: LCD DO : O : The srial data output to the LCD driver.
pin 3: LCD DI :IN: The srial data input from the LCD driver.
pin 4: ILL PULSE :IN: Illumination control signal input.
pin 5: TIME BASE :IN: Time base pulse input.
pin 6: CNT GND : - : Connect to the ground.
pin 7: CN VSS :IN: Connect to VSS.
pin 8: TEST : - : For the Test.
pin 9: ILL ON :IN : Illumination ON signal input.
pin 10: RESET :IN : Reset signal input.
pin 11: X OUT : O : Crystal connection.
pin 12: GND : - : Ground.
pin 13: X IN :IN : Crystal connection.
pin 14: VDD : - : Positive supply voltage.
pin 15: NU : - : Not in use.
pin 16: BU DET :IN: Backup detection signal input.
pin 17: ACC IN :IN: ACC ON flag input.
pin 18: NU : - : Not in use.
pin 19: SBSY :IN: Sub code block synchronous signal input.
pin 20: AMP ON : O : Audio power amplifier ON signal output.
pin 21: SYS ON : O : System ON signal output.
pin 22: LCD ON : O : LCD back light ON signal output.
pin 23: AF MUTE : O : Audio frequency signal muting.
pin 24: BEEP : O : Beep out.
pin 25: NU : - : Not in use.
pin 26: NU : - : Not in use.
pin 27: NU : - : Not in use.
pin 28: CD ON : O : CD ON signal output.
pin 29: NDS FLASH TX : O : NDS serial data output for external A/C.
pin 30: NDS FLASH RX :IN: NDS serial data input for external A/C.
pin 31: FLASH CLK : O : The clock pulse output for the flash mem-
ory.
pin 32: NU : - : Not in use.
pin 33: NU : - : Not in use.
pin 34: NU : - : Not in use.
pin 35: NDS CNT : O : Low = A/C 1, High = A/C 2.
pin 36: NDS REQ 2 :IN: NDS request signal input.
pin 37: NDS REQ 1 :IN: NDS request signal input.
pin 38: SOURCE CHG : O : The signal source change signal output.
pin 39: FLASH EPM : O : FLASH EPM.
pin 40: VOL DO : O : Serial data output to the volume IC.
pin 41: VOL CLK : O : The clock pulse output to the volume IC.
pin 42: VOL CE : O : The chip enable signal output to the vol-
ume IC.
pin 43: NU : - : Not in use.
pin 44: FLASH CE : O : The chip enable signal output to the flash
memory.
pin 45: NU : - : Not in use.
pin 46: JACK ON : IN: AUX detection signal input.
pin 47: NU : - : Not in use.
pin 48: CD CONNECT :IN: CD connection check signal input.
pin 49: BUC 0 :I/O: CD IC Data input / output.
pin 50: BUC 1 :I/O: CD IC Data input / output.
pin 51: BUC 2 :I/O: CD IC Data input / output.
pin 52: BUC 3 :I/O: CD IC Data input / output.
pin 53: BUC CLOCK : O : CD IC clock pulse output.
pin 54: CCE : O : The chip enable signal output.
pin 55: CD RESET : O : The reset pulse output to the CD IC.
pin 56: S STOP :IN: Inside limit signal input from the CD mech-
anism.
pin 57: CHU SW :IN: CD disc chucking signal input.
pin 58: TR A :IN: Photo sensor signal input from the CD
mechanism.
pin 59: TR B :IN: Photo sensor signal input from the CD
mechanism.
pin 60: VDD : - : Positive supply voltage.
pin 61: LD CONT :I/O: Loading motor control signal input/output.
pin 62: GND : - : Ground.
pin 63: PLL CE : O : The chip enable signal output to the PLL
IC.
pin 64: PLL CLK : O : The clock pulse output to the PLL IC.
pin 65: PLL DO : O : Serial data output to the PLL IC.
pin 66: PLL DI :IN: Serial data input from the PLL IC.
pin 67: ST/TWEET :I/O: Outputs "L" at AM 900kHz receiving. Inputs
"L" at FM stereo receiving.
pin 68: LD MUTE : O : Muting signal output to the CD mechanism.
pin 69: RADIO ON : O : Radio ON flag output.
pin 70: NU : - : Not in use.
pin 71: NU : - : Not in use.
pin 72: NU : - : Not in use.
pin 73: NU : - : Not in use.
pin 74: NU : - : Not in use.
pin 75: NU : - : Not in use.
pin 76: NU : - : Not in use.
pin 77: NU : - : Not in use.
pin 78: NU : - : Not in use.
pin 79: NU : - : Not in use.
pin 80: NU : - : Not in use.
pin 81: NU : - : Not in use.
pin 82: NU : - : Not in use.
pin 83: NU : - : Not in use.
pin 84: NU : - : Not in use.
pin 85: VOL 1 :IN: Volume control pulse input from the rotary
encoder.
pin 86: VOL 2 :IN: Volume control pulse input from the rotary
encoder.
pin 87: NU : - : Not in use.
pin 88: NU : - : Not in use.
pin 89: CD EJECT :IN: CD eject switch signal input.
pin 90: NU : - : Not in use.
pin 91: ILL DET : IN: Illumination ON signal input.
pin 92: NU : - : Not in use.
pin 93: NU : - : Not in use.
pin 94: A VSS : - : Analog ground.
pin 95: NU : - : Not in use.
pin 96: Vref : - : Reference voltage.
pin 97: A VCC : - : Positive supply voltage for the internal an-
alog section.
pin 98: POWER SW :IN: Power switch ON signal input.
pin 99: LCD RESET : O : Reset pulse output to LCD.
pin100: LCD CE : O : The chip enable signal output to the LCD
driver.
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