Kenwood DPX701 Service Manual

Also see for DPX-MP7090U: Instruction manual

Contents

14DPX701/701U/701UYDPX-MP7090UMICROCOMPUTER’S TERMINAL DESCRIPTION● MECHANISM MICROCOMPUTER: M30620FCPGP (X32: IC1)Pin No. Pin Name I/O Application Processing Operation Description1~5 NC - Not used Opened output L fixed6 BYTE I External data bus SW input Connects to GND7 CNVSS I Processor mode SWL: Single chip modeH: Microprocessor mode or flash ROM writing8 MUTE O Audio mute control L: Mute ON, H: Mute OFF9 NC - Not used Opened output L fixed10 RESET I Reset detection L: Reset (Flash ROM writing), H: Normal11 XOUT O Main clock output Connects to resonator12 VSS - Power supply input Connects to GND13 XIN I Main clock input Connects to resonator14 VCC1 - Power supply input Connects to BU3.3V15 NMI I NMI interruption input Input Hi (Pull-up) fixed16 MSTOP I STANDBY comeback interrupption L: Stop, H: Stop cancelled (Hi edge)17 NC - Not used Opened output L fixed18 DSP INT I DSP interruption signal input H: Interruption (Hi edge)19~22 NC - Not used Opened output L fixed23 E2P SCL I/O E2P I2C clock outputSeries resistors and E2PROM are not built whenROM collection is not used.24 E2P SDA I/O E2P I2C data input and outputSeries resistors and E2PROM are not built whenROM collection is not used.25,26 NC - Not used Opened output L fixed27 SCL I System μ-com I2C clock input28 SDA I/O System μ-com I2C data input and output29 DSP TXD O Data output for DSP serial data Flash ROM writing: TXD (Pull-up)30 DSP RXD I Data input for DSP serial data Flash ROM writing: RXD31 DSP CLK O Clock output for DSP serial data Flash ROM writing: SCLK(Pull-up)32 DSP STB (BUSY) O DSP data strove signal output Flash ROM writing: BUSY33 CS SDATA O Data output for decoder serial data34 CS BDATA I Data input for decoder serial data35 CS CLK O Clock output for decoder serial data36~38 NC - Not used Opened output L fixed39 EPM - Not used (Flash ROM: EPM) Opened output L fixed40 PON D3.3 O D3.3V POWER ON control H: POWER ON, L: POWER OFF41 PON A5 O A5.0V POWER ON control H: POWER ON, L: POWER OFF42 PON CS1 O IC15 series 3.3V POWER ON control H: POWER ON, L: POWER OFF43 PON CS2 O IC15 series 1.8V POWER ON control H: POWER ON, L: POWER OFF44 CE - Not used (Flash ROM: CE) Opened output L fixed45 DRV MUTE O Driver mute L: Stop, H: Mute OFF46,47 NC - Not used Opened output L fixed