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GX-201KEF2/LEF2/REF2/SEF2
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SYSTEM MICROCONTROLLER IC : 703037AGF-A15 (X14 : IC81)
Pin No.
Pin Name
I/O
Application
Processing Operation Description
1
SC_DATAIN
O
Slave data output (Panel communication)
(UART) 19200bps
2
PLL_SDA
I/O
F/E (+EEPROM) data input/output
(I2C) 100kHz or less
3
R_DATA (NC)
I (O)
RDS data input
(M, General type : Open, not used)
4
PLL_SCL
O
F/E (+EEPROM) clock output
(I2C) 100kHz or less
5
R_QUAL (NC)
I (O)
RDS quality
(M, General type : Open, not used)
6
CDX_SI
I
6CD data input
(SIO) 250kHz
7
CDX_SO
O
6CD data output
(SIO) 250kHz
8
CDX_CLK
I
6CD clock input
(SIO) 250kHz
9
EVDD
-
5V electrical potential
10
EVSS
-
GND electrical potential
11
BEEP
O
BEEP output
Buzzer : H (pulse) 2kHz
12
IFC
I
F/E IFC OUT input
Station found : L, Other : H
13
AM+B
O
AM power supply output
AM : H, Other : L
14
FM+B
O
FM power supply output
RDS operation : H (FM : H),
Other than RDS operation : L (Other : L)
15
ILL_DET-
I
ILL- detection (Vehicle illumination control signal)
ILL- ON (GND) : H (Pulse input)
16
I
ILL+ detection (Vehicle small signal)
ILL+ ON : L
17
NC
O
Not used
Open
18
MUSIC
I
CS between music detection
Between music : H, Music detection : L
19
DOLBY
O
CS dolby switching
NR ON : H, NR OFF : L
20
EQ_MUTE
O
CS EQ mute
PLAY : L, FF/REW DPSS : H
21
IC/VPP
-
Write voltage
22
CDX_MTS
O
6CD communication request output
CS metal SW
Normal : H, Metal, CrO2 : L
CS F/R switching
FWD : L, REV : H, Initial : L
CS gain switching at music select
G1 (-40dBm) : L, G2 (-60dBm) : H
IE-BUS data input
IE-BUS data output
IC2 data input/output
(I2C) 100kHz or less
IC2 clock output
(I2C) 100kHz or less
Not used
Open
31
A_SEL
O
Audio selection
CD : H, CS : L
32
MUTE
O
Audio mute
Mute : H, Normal : L
33
AFS (NC)
O
Switching constant at noise detection
FM, AM seek : L (J, M, General type : Open, not used),
RDS operation : H, Other than RDS operation : L
34
RESET
I
System reset input
Reset : L, Reset voltage : 4.2V, Reset at rise of L
→
H
35
XT1
I
Sub-system clock oscillation terminal
MICROCOMPUTER’S TERMINAL DESCRIPTION
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