CDX-GT620U/GT627UE/GT670U/GT670US
39
• IC Pin Function Description
MAIN BOARD IC501 M3062LFGP-054FP (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
FL DATA
O
Fluorescent indicator tube serial data signal output
2
FL CLK
O
Fluorescent indicator tube serial clock signal output
3
NCO
O
Not used. (Open)
4
SIRCS
I
Remote control signal input
5
VBUS ON
I
VBUS power supply control signal input “H”: VBUS on, “L”: VBUS off
6
DOORIND
O
Door indicator control signal output
7
NOSE SW
I
Panel detection signal input
8
BYTE
I
Connect to ground. (Pull down)
9
CNVSS
I
Flash write signal input Normally operation: “L”, Flash write: “H”
10
XIN
I
Low speed operation clock signal input (32.768kHz)
11
XOUT
O
Low speed operation clock signal output (32.768kHz)
12
RESET
I
Reset signal input
13
OSCOUT
O
High speed operation clock signal output (11.06MHz)
14
VSS
—
Ground pin
15
OSCIN
I
High speed operation clock signal input (11.06MHz)
16
VCC1
—
Power supply pin (+3.3V)
17
NMI
I
External pull up pin (fi xed at “H”.)
18
DAVN
I
RDS data block cycle detection signal input
19
BUIN
I
Back up power supply detection signal input
20
CDM ON
I
CD mechanism deck power supply control request signal input
21
NCO
O
Not used. (Open)
22
Z MUTE
I
Mute signal input
23
EJECT OK
O
Eject ok signal output
24
DOOR SW
I
Front panel open/close detection signal input
25
USB OVER
I
USB over current detection signal input
26
BEEP
O
Beep signal output to power amplifi er
27
USB ON
O
USB over current detection IC control signal output
28
SYNC OUT
O
DC/DC converter oscillator frequency control signal output
29
I2C SCK
O
I2C serial clock signal output
30
I2C SIO
I/O
I2C serial data signal input/output
31
TXD
O
Flash write interface serial data signal output
32
RXD
I
Flash write interface serial data signal input
33
SCLK
O
Not used in this set. (Open)
34
BUSY
O
Not used in this set. (Open)
35
MC TX
O
MC-BUS communication and mechanism IC communication TX output
36
MC RX
I
MC-BUS communication and mechanism IC communication RX input
37
NCO
O
Not used. (Open)
38
IPCHG
O
Not used in this set. (Open)
39
FL ON
O
Fluorescent indicator tube power supply control signal output
40
DD ON
O
DC/DC converter power supply on/off control signal output
41
EPM
O
Not used in this set. (Open)
42
SYSRST
O
System reset signal output
43
RCIN1
I
Rotary commander shift key signal input
44
WAKE UP
O
Mechanism IC wake up signal output
45
NCO
O
Not used. (Open)
46
CE
O
Not used in this set. (Open)
47 to 49
NCO
O
Not used. (Open)
50
IPDET
O
I-pod detection signal output
51
CD ON
I
CD mechanism servo power supply control request signal input
52
ILL IN
I
Illumination signal input for auto dimmer
53
TESTIN
I
Test mode detection signal input
54
TELATT
I
Telephone attenuate detection signal input
55
ACC IN
I
Accessory power supply detection signal input
56
ATT
O
Audio mute control signal output
Ver. 1.1
