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PF-2551I-A
EXPLANATION OF IC
052-3166-20
M30624MGA-171GP
Main System Controller
1.Terminal Description
pin
1: FUNCTION 2
: IN : Low = without MD.
pin
2: FUNCTION 3
: IN : Low = without Cassette tape.
pin
3: AREA 1
: IN : The destination setting input.
pin
4: AREA 2
: IN : The destination setting input.
pin
5: CLK SEL
: IN : The initial setting input for the clock.
pin
6: CNGND
: - : Connect to the ground.
pin
7: CN VSS
: IN : Connect to VSS.
pin
8: WB SD
: IN : WB station detect signal input.
pin
9: VFD ON
: IN : VFD ON signal output.
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: CN VDD
: - : Connect to VDD.
pin 16: BU DET
: IN : Backup detection signal input.
pin 17: ACC DET
: IN : ACC detection signal input.
pin 18: ILL PULSE
: IN : Illumination control signal input.
pin 19: CONNETCT 27 : - : Connect to pin 27.
pin 20: ILL ON
: IN : Illumination ON signal input.
pin 21: AUDIO OUT
: O : Outputting "L" to send back the audio sig-
nal to the Ce-NET.
pin 22: NAVI MUTE
: O : Muting signal output to suppress the noise
without Navigation sound interrupting.
pin 23: LINE MUTE
: O : The line mute signal output.
pin 24: BEEP
: O : Beep out.
pin 25: TIME BASE
: IN : Time base pulse input.
pin 26: DX/LO
: O : DX/Local select signal output.
pin 27: Ce-NET RX
: IN : The serial data input from Ce-NET.
pin 28: Ce-NET TX
: O : The serial data output to Ce-NET.
pin 29: IX-6 TX
: O : Serial data output.
pin 30: IX-6 RX
: IN : Serial data input.
pin 31: ST
: IN : The stereo flag input.
pin 32: AMP ON
: O : Audio power amplifier ON signal output.
pin 33: F-BUS DO
: O : The serial data output for F-BUS.
pin 34: F-BUS DI
: IN : The serial data input for F-BUS.
pin 35: F-BUS CLK
: O : The clock pulse output for F-BUS.
pin 36: F-BUS RESET
: O : The reset pulse output for F-BUS.
pin 37: F-BUS CS
: O : The chip select output for F-BUS.
pin 38: F-BUS C/D
: O : The C/D signal output to F-BUS IC. H =
Command mode, L = Data mode.
pin 39: ANT ON
: O : Antenna ON command output.
pin 40: SYS ACC
: O : ACC detect signal output.
pin 41: SYS ON
: O : System ON signal output.
pin 42: NU
: - : Not in use.
pin 43: TEL ON
: IN : Telephone ON signal input.
pin 44: SUB W MUTE
: O : The sub woofer muting signal output.
pin 45: CD 5V
: O : Power supply control signal output for the
CD IC / DAC IC. "H"= ON.
pin 46: EEP CEO
: O : The chip enable signal output to EEP-
ROM.
pin 47: EEP CLK
: O : The clock pulse output to EEP-ROM.
pin 48: EEP DO
: O : The serial data output to EEP-ROM.
pin 49: EEP DI
: IN : The serial data input from EEP-ROM.
pin 50: MD 8V
: O : Control signal output to the power supply
circuit.
pin 51: MD WP
: O : Wake up signal output to the MD mecha-
nism.
pin 52: MD X CS
: O : The chip selection signal output to the MD
mechanism.
pin 53: MD X SCK
: O : The clock pulse output to the MD mecha-
nism.
pin 54: MD SO
: O : Serial data output to the MD mechanism.
pin 55: MD RESET
: O : MD reset pulse output.
pin 56: MD X SRQ
: IN : Request signal input from the MD mecha-
nism.
pin 57: MD SI
: IN : Serial data input from the MD mechanism.
pin 58: MD LD
: IN : Disc-in signal input from the MD mecha-
nism.
pin 59: NU
: - : Not in use.
pin 60: VDD
: - : Positive supply voltage.
pin 61: DIR EM FLG
: IN : DIR emphasis flag input. H = without em-
phasis.
pin 62: GND
: - : Ground.
pin 63: DAC ML
: O : Latch pulse output to the DAC.
pin 64: DAC MC
: O : Clock pulse output to the DAC.
pin 65: DAC MD
: O : Serial command data output to the DAC.
pin 66: F-BUS MUTE I : IN : The muting signal input for F-BUS.
pin 67: F-BUS MUTE O : O : The muting signal output for F-BUS.
pin 68: F-BUS RESET
: O : The reset pulse output for F-BUS.
pin 69: F-BUS SYS ON : O : The system ON signal output for F-BUS.
pin 70: F-BUS SYS OFF: O : The system OFF signal output for F-BUS.
pin 71: F-BUS ONREQI : IN : The system ON request signal input for F-
BUS.
pin 72: F-BUS OFFREQI: IN : The system OFF request signal input for F-
BUS.
pin 73: F-BUS IRQI
: IN : The interrupt request signal input for F-
BUS.
pin 74: VFD CS
: O : CS signal output to VFD driver.
pin 75: VFD CP
: O : CP signal output to VFD driver.
pin 76: VFD DA
: O : The serial data output to the VFD driver.
pin 77: VFD BLANK
: O : Blank pulse output to the VFD driver.
pin 78: EVol/VF/PL-DO : O : The serial data output for the electric vol-
ume IC and the VFD driver and PLL.
pin 79: VFD DI
: IN : Serial data input from the VFD driver.
pin 80: EVol/VF/PL-CL
: O : The clock pulse output for the electric vol-
ume IC and the VFD driver and PLL.
pin 81: EVol/VF/PL-CE
: O : The chip enable signal output for the elec-
tric volume IC and the VFD driver and
PLL.
pin 82: VFD RESET
: O : The reset pulse output to VFD.
pin 83: PLL DI
: IN : Serial data input from the PLL IC.
pin 84: NU
: - : Not in use.
pin 85: E VOL 1R
: IN : Pulse signal input from the rotary encod-
er.
pin 86: E VOL 1L
: IN : Pulse signal input from the rotary encod-
er.
pin 87: POWER SW
: IN : Power switch ON signal input.
pin 88: IX-6 LOAD
: IN : IX-6 loading signal input.
pin 89: MD EJ SW
: IN : MD eject switch signal input.
pin 90: IX-6 EJ SW
: IN : IX-6 eject switch signal input.
pin 91: IX-6 REQUE
: IN : Request signal input from IX-6.
pin 92: NU
: - : Not in use.
pin 93: NU
: - : Not in use.
pin 94: A VSS
: - : Analog ground.
pin 95: HR
: IN : Steering wheel remote controller input.
pin 96: Vref
: - : Reference voltage.
pin 97: A VCC
: - : Positive supply voltage for the internal an-
alog section.
pin 98: DIM C SL
: IN : The initial setting input for the dimmer can-
cellor.
pin 99: ILL C AD
: O : Brightness control signal input.
pin100: FUNCTION 1
: IN : Low = GS-1, High = IX-6.
