Microcomputer's Terminal Description - Kenwood FGZ000UF2 Service Manual

FGZ000UF2

MICROCOMPUTER'S TERMINAL DESCRIPTION

SYSTEM µ-com : IC22 (X14 : SYNTHESIZER UNIT)
Pin No. Pin Name
1 NAVI-TXD
2 NC
3 ILL PWM
4 ILL PWM
5 E2PSDA
6 E2PSCL
7 SPD
8 WDP
9,10 NC
11 TYPE0
12 NC
13 CAN EN
14 CAN STB
15 BYTE
16 CNVSS
17 XCIN
18 XCOUT
19 RESET
20 XOUT
21 VSS1
22 XIN
23 VCC1
24 NMI
25 CAN ERR
26~29 NC
30 CAN IN
31 CAN OUT
32 NC
33 BRIGHT
34 VMUTE
35 NC
36 I2CSCL
37 I2CSDA
38 TXD1
39 VCC2
40 RXD1
41 VSS2
42 SCLK
43 BUSY
44 SYSDATA
45 SHDATA
6
I/O Application
O Transmission data output for normal NAVI communication
- Not connected
I ILLUMI PWM input (Cycle)
I ILLUMI PWM input (Oscillation width)
I/O IIC clock output (E2PROM)
O IIC data input/output (E2PROM)
I Vehicle speed pulse input
O Watchdog pulse output
- Not connected
I Destination setting input
I Not connected
O CAN communication enable
O CAN communication standby
- Not used
I 5V at ROM writing
I Sub-clock input
O Sub-clock output
I Reset input
O Main clock input
- GND
I Main clock output
- Power supply input
I NMI interruption input
I CAN communication condition input
- Not connected
I CAN reception data input
O CAN reception data output
- Not connected
O Backlight control output
O Video mute control output
- Not connected
O IIC clock output (E2PROM)
I/O IIC clock output (E2PROM)
- Not used
- Power supply input
- Not used
- GND
- Not used
- Not used
O Data output (For video control processing)
I Data input (For video control processing)
Processing Operation Description
H, L output
Not used
PWM input
PWM input
H, L output
H, L output
H, L input
H, L output
Not used
H, L-fixed
H, L-fixed
H, L output
H, L output
L-fixed
H : Microprocessor mode, L : Single chip mode,
L : Memory expansion mode
H, L input
H, L output
H, L input, L : RESET
H, L output
GND
H, L input
VCC5V
H-fixed
H, L input, L : Error
Not used
H, L output
H, L input
Not used
PWM output
H, L output, L : MUTE
Not used
H, L output
H, L input/output
Not used
VCC5V
Not used
GND
Not used
Not used
H, L output
H, L input