Kenwood DDX8017 Service Manual page 23

MICROCOMPUTER'S TERMINAL DESCRIPTION
Module
Pin No. Pin Name
(physical)
21 P_CON DC-CN
µCOM
22 PORTVDD0
23 EXT_CONT DC-CN
24 ANT_CONT DC-CN
25 P_ON Power supply
26 PWIC_MUTE POWER-IC
27 PWIC_STBY POWER-IC
28 NC
29 EEPROM_SDA EEPROM
29 AUD_SDA IC2 VI
30 EEPROM_SCL EEPROM
30 AUD_SCL IC2 VI
31 MUTE0 IC2 VI
32 MUTE1 IC2 VI
33 MUTE2 IC2 VI
34 NAVI_FLAG IC2 VI
35 MUTEC IC2 VI
36 NC NC
µCOM
37 GND0
µCOM
38 CPUREG
µCOM
39 VDD0
µCOM
40 RESET
µCOM
41 MODE/VPP
42 FLASH_SI FLASH
42 SYS_MDATA to X14
43 FLASH_SO FLASH
43 SYS_SDATA to X14
44 FLASH_CLK FLASH
44 SYS_MCLK to X14
45 BU_DET DC-CN
46 DIR_CDTO DSP BLOCK
47 DIR_CDTI DSP BLOCK
I/O Application
O External amp power supply control
O External amp control
O Power antenna control
O SW5V→SW14V power supply ON/OFF control
O POWER-IC MUTE control
O POWER-IC standby control
O
I/O Data for EEPROM (ROM correction)
I/O Data for IC2 VI
I/O Clock for EEPROM (ROM correction)
I/O Clock for IC2 VI
O MUTE for IC2 VI OUT0
O MUTE for IC2 VI OUT1
O MUTE for IC2 VI OUT2
Monitoring whether NAVI interruption is
O
taking place
O MUTE for IC2 VI MUXC
O
I Data input at flash write
Data from system control µ-com
I
O Data output at flash writing
Data to system control µ-com
O
I CLK input at the flash writing
Clock from system control µ-com
I
I Backup reduced electric power detection
I Input data for DIR
O Output data for DIR
DDX8017/8027/8027Y
DDX8037/8047/8067
Truth Value
Processing Operation Description
Table
Hi: During POWER ON (Does not come
On during STANDBY),
Low: During STANDBY or POWER OFF
Hi at FMAM selection→Antenna UP
H: Antenna UP,
In other cases Low→Antenna DOWN
H: ON, L: Normal
L: MUTE ON (At POWER, ACC OFF,
STANDBY, momentary power down)
H: POWER ON, L: POWER OFF
L: MUTE ON, H: MUTE OFF
L: MUTE ON, H: MUTE OFF
L: MUTE ON, H: MUTE OFF
L: No NAVI interruption
H: NAVI interruption in progress
L: MUTE ON, H: MUTE OFF
Low when 8.8V or higher. Hi when
reduced electric power (8.8V or lower)
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