CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
37
• IC Pin Function Description
MAIN BOARD (2/5) IC501 R5F3650KBDZ78FA (SYSTEM CONTROL) (Former type)
MAIN BOARD (2/5) IC501 R5F3650KBDZ75FA (SYSTEM CONTROL) (New type)
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 input “L”: With panel, “H”: Without panel
4
SIRCS
I
Remote control signal (infrared) input
5
UNISO
O
SONY BUS serial data output
6
UNISI
I
SONY BUS serial data input
7
UNISCK
O
SONY BUS serial clock signal output
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
SYSRST
O
System reset signal output
21
BUS_ON
O
VBUS power control signal output
22
MC_RX
I
MC-BUS communication MECHA (MG-101CA) TX signal input
23
DOOR_SW
O
Not used. (Open)
24
MC_TX
O
MC-BUS communication MECHA (MG-101CA) RX signal output
25
DOOR_ING
O
Not used. (Open)
26
SYNC_OUT
O
DD converter frequency control signal output
27
EJECT_OK
O
Not used. (Open)
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 writer IF (serial data) output
32
FW_RXD
I
Flash writer IF (serial data) input
33
FW_CLK
I
Flash writer IF (serial clock) signal input
34
FW_BUSY
O
Flash writer IF (busy) signal output
35
XM_TX
O
Not used. (Open)
36
XM_RX
O
Not used.
37
XM_POWER EN
O
Not used.
38
CD_ON
I
CD mechanism servo power supply control request signal input
39
CDM_ON
I
CD mechanism deck power supply control request signal input
40
WAKE_UP
O
CD mechanism deck micon wake up signal output
41
EPM
O
EPM signal output (Fixed at L in this set)
42
Z_MUTE
I
Z mute signal input
43
R/S SW_SEL
O
Not used. (Open)
44
EQ_TYPE__SEL
O
Not used. (Open)
45
INITCOL_SEL
O
Not used. (Open)
46
CE
O
CE signal output (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
EN_USB
O
USB over current detect IC control signal output
51
VBUS_ON
I
VBUS power supply control signal input (L: VBUS OFF, H: VBUS ON)
52
FLT_USB
I
USB over current detect signal input
53
EN_SYS
O
Power control DC/DC signal output
54
IPOD
O
iPod connection mode signal output
Note:
Refer to “ABOUT CHANGE OF THE LCD DRIVER IC (IC901)
ON THE KEY BOARD” on page 7 for New/Former types of IC501.
