CDX-GT31MP/GT260MP/GT267ME/GT310MP/GT313MP
31
• IC Pin Function Description
MAIN BOARD (2/3) IC501 R5F3650KBDZ88FA (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
LCD_SO
O
Serial data output for LCD driver
2
LCD_CLK
O
Serial clock signal output for LCD driver
3
NOSE_SW
I
Front panel detach/attach detect signal input “L”: With panel, “H”: Without panel
4
SIRCS
I
Remote control signal (infrared) input
5
NCO
O
Not used. (Open)
6
NCO
O
Not used. (Fixed at L.)
7
NCO
O
Not used. (Open)
8
BYTE
I
External data bus width select signal input (Connect to VSS in this set)
9
CNVSS
I
Flash writer IF (CNVSS) signal input (L: normally operation, H:
fl
ash write)
10
XIN
I
Low speed operation clock signal input (32.768 kHz)
11
XOUT
O
Low speed operation clock signal output (32.768 kHz)
12
RESET
I
System reset signal input
13
OSCOUT
O
High speed operation clock signal output (7.92 MHz)
14
VSS
―
Ground terminal
15
OSCIN
I
High speed operation clock signal input (7.92 MHz)
16
VCC1
―
Power supply terminal (+3.3 V)
17
NMI
I
Non-maskable interrupt signal input (Fixed at H in this set)
18
RC_IN1
I
Rotary commander shift key signal input
19
BUIN
I
Backup power supply detect signal input
20, 21
NCO
O
Not used. (Open)
22
DEC_SI
I
Decorder data signal input
23
DEC_SCK
O
Decorder clock signal output
24
DEC_SO
O
Decorder data signal output
25, 26
NCO
O
Not used. (Open)
27
DRV_ON
O
Driver control signal output
28
BEEP
O
Beep signal output for the power ampli
fi
er IC
29
I2C_SCL
O
IIC communication serial clock signal output
30
I2C_SDA
I/O
IIC communication serial data input/output
31
FW_TXD
O
Flash software serial data output/System monitor output
32
FW_RXD
I
Flash software serial data input
33
FW_CLK
I
Flash software serial clock input for synchronous writing
34
FW_BUSY
O
Flash software busy signal output for synchronous
fl
ashing
35 to 37
NCO
O
Not used. (Open)
38
MEC_LOAD
O
CD mechanism deck motor loading signal output
39
MEC_EJECT
O
CD mechanism deck motor eject signal output
40
CDON_1500MV
O
Servo power supply control signal output
41
EPM
O
EPM signal output (Fixed at L in this set)
42
MEC_INSW
I
Mechanism deck pack in detection switch signal input
43
MEC_LIMIT
I
Mechanism deck sled limit in detection switch signal input
44
MEC_DSW
I
Mechanism deck chacking end detection switch signal input
45
DEC_INT
I
Decoder request signal input
46
CE
I
Clip enable signal input (Fixed at H in this set)
47
HIT2_SDA
I/O
Tuner serial data input/output
48
HIT2_SCL
O
Tuner serial clock output
49
HIT2_RESET
O
Tuner reset signal output
50
DEC_XMUTE
O
Decorder mute signal output
51
CD_ZDET
I
Zero detect signal input
52
CD_XCCE
O
Servo/decorder clip enable signal output
53
DEC_SSTBY
O
Decorder SRAM standby signal output
54
DEC_RST
O
Decorder reset signal output
55, 56
NCO
O
Not used. (Open)
57
ACC_IN
I
Accessory power supply detect signal input
58
ATT
O
Audio mute control signal output
59
DIAG
I
Status signal input from power amp IC
60
AMPSTB
O
Standby signal output for power regulator IC
61
NCO
I
Not used. (Open)
