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GX-201KEF2/LEF2/REF2/SEF2
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MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
PANEL MICROCONTROLLER : 90587CAPFV13x (X25 : IC1)
Pin No.
Pin Name
1
KR2_A
2
KR3_A
3
KR4_A
4
KR5_H
5
KR6_H
6,7
NC
8
AVFD_ON
9
VSS
10~15
NC
16
HMC_DATA
17
HSC_DATA
18,19
NC
20
AVFD_DATA
21
VCC
TE
L 13942296513
22
AVFD_CLK
23
SCL
24
SDA
25
C
26
TYPE1
27
TYPE2
28
DVRH
29
DVSS
30,31
NC
32
AVCC
33
AVRH
34
AVRL
35
AVSS
36
NC
37
HVFD_DATA
38
HVFD_CLK
www
39
NC
40
VSS
41
ACC_DET
.
42
SW5V_ON
10
I/O
Application
I
Key matrix (RET : 2Bit)
I
Key matrix (RET : 3Bit)
I
Key matrix (RET : 4Bit)
I
Key matrix (RET : 5Bit)
I
Key matrix (RET : 6Bit)
O
Not used, Open
O
Audio VFD power supply ON signal
-
Within-chip ground
O
Not used, Open
I
Heater ECU communication (Reception)
O
Heater ECU communication (Transmission)
O
Not used, Open
O
VFD tube communication for audio (Transmission)
-
Power supply input terminal
O
VFD tube communication for audio (Clock)
O
Serial clock for E2PROM
I/O
Serial data for E2PRROM
-
Terminal for voltage stabilization
I
Left/Right steering wheel judgment
I
Judgment on security condition
-
Connected to GND as D/A converter not used
-
Ground the terminal for D/A converter
O
Not used, Open
-
Power supply input terminal A/D converter
-
Connected to GND as A/D converter not used
-
Connected to GND as A/D converter not used
-
Ground the terminal for A/D converter
O
Not used, Open
O
Heater VFD tube communication (Transmission)
O
Heater VFD tube communication (Clock)
O
Not used, Open
-
GND connection terminal
x
ao
y
I
Detection of ACC
i
O
UART buffer power supply control
8
Processing Operation Description
Controls power supply for Audio FL tube.
When stopped (L) : Power supply OFF,
Normal operation (H) : Power supply ON
GND
Conducts communication (Reception) with A/C
Conducts communication with A/C (transmission)
Display data transmission for audio FL tube
BU5V connection
Q Q
3
6 7
1 3
Audio VFD synchronization clock output during serial communication
Output to E2PROM as I2C clock signal
Input/Output to E2PROM as I2C data signal
0.1µF capacitor connection
H : Left steering wheel, L : Right steering wheel
H : Security, L : No security
GND
GND
VCC
GND
GND
GND
Display data transmission to A/C FL tube
Heater VFD tube communication synchronization clock
output for serial communication
GND
u163
Hi : No ACC, Lo : With ACC
.
When IGN ON L : ON (SW5V) output,
When IGN OFF H : OFF (SW5V) output
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
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