Microcomputer's Terminal Description - Kenwood GX806EF2 Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

Main Microcomputer : 703037HYGFM01 (X14-938 : IC801)
Pin No. Pin Name I/O
1 SP_DATA_S
2 R_DATA
3 PLL_SDA I/O
3 PLL_SDA I/O
4 R_QUAL
5 PLL_SCL
5 PLL_SCL
6~8 NC
9 EVDD
10 EVSS
11 BEEP
12 IFC
13 AM+B
14 FM+B
15~20 NC
21 Icc/VPP
22 CDX_MTS
23 NC
24 ILL_DET
25 NC
26 BUSDI
27 BUSDO
28 VOL_SDA I/O
29 VOL_SCL
30,31 NC
32 MUTE
33 AFS
34 RESET
35 XT1
36 XT2
37 REGC
38 X1
39 X2
40 VSS
41 VDD
42 NC
43~46 NC
47 HARD_RESET O
Function
O Data output to panel microcomputer
I RDS data
EEPROM data
PLL data
I RDS quality
O EEPROM clock
O PLL clock
O Not used.
-
-
O BEEP output
I F/E IFC OUT input terminal
O AM power supply control
O FM power supply control
O Not used
- (Write to flash memory)
O 6CD communication request output
O Not used
I Illumi detection
O Not used
I F-BUS data IN
O F-BUS data OUT
E-VOL data
O E-VOL clock
O Not used
O VOL mute
When noise is detected, constant is
O
switched
- System reset input
I Sub-system clock oscillation terminal
O Sub-system clock oscillation terminal
-
- Main system clock oscillation terminal
- Main system clock oscillation terminal
- GND electric potential
- 5V electric potential
- Not used
O Not used
Hard reset output
GX806EF2
Processing Operation Description
UART 19200bps
RDS data input
EEPROM data input/output
PLL data input/output
RDS quality
EEPROM clock output
PLL clock output
Not used.
2kHz BEEP output (pulse), When not operation : L
L : Station found, H : Station not found
AM : H, Other : L
FM : H, Other : L
Not used
(Write to flash memory)
6CD communication request output
Not used
Illumi ON : L
Not used
BUS data input
BUS data output
Not used
Mute : H, Normal : L
During FM/AM seek : L, When RDS in operation : H,
When other than RDS in operation : L
Reset : L, Resetting voltage : 4.2V
Not used
Not used
12.582MHz
12.582MHz
Not used
Not used
Reset : H, Others : L
5