Read Sony CDX-GT522U / CDX-GT527U Service Manual online
CDX-GT522U/GT527U
42
MAIN BOARD IC601 TMPM320C1DFG-9999 (SUB SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
MODE1
I
Operation mode setting terminal Fixed at “L” in this unit
2
RESETn
I
Reset signal input terminal from the main system controller
3
DRV_ON
O
Driver control signal output to the CD section
4
BSIF_INT
I
Request signal input from the audio DSP
5
DEC_INT
I
Request signal input from the audio DSP
6
(DOOR_SW)
-
Not used
7
MEC_LIMIT
I
Detection signal input from the CD section (limit switch)
8
CD_XRST
O
Reset request signal output to the main system controller “L”: reset
9
DEC_XMUTE
O
Muting on/off control signal output to the audio DSP
10
SF_WP
O
Write protect signal output to the serial fl ash
11
SF_HOLD
O
Hold signal output to the serial fl ash
12
DVCC3.3IO
-
Power supply terminal (+3.3V)
13
DVSSCOM
-
Ground terminal
14
SP_CLK
O
Spectrum analyzer data transfer clock signal output to the audio DSP
15
SP_DATA
I
Spectrum analyzer data input from the audio DSP
16
CD_ZDET
I
Zero detection signal input from the audio DSP
17
A-ATT
O
Muting on/off control signal output to the main system controller
18
SF_SO
O
Serial data output to the serial fl ash
19
SF_SI
I
Serial data input from the serial fl ash
20
SF_CE
O
Chip enable signal output to the serial fl ash
21
SF_CLK
O
Serial data transfer clock signal output to the serial fl ash
22
BSIF_DATA
O
Audio data output to the audio DSP
23
BSIF_GATE
O
Gate signal output to the audio DSP
24
BSIF_LRCK
O
L/R sampling clock signal output to the audio DSP
25
BSIF_BCK
O
Bit clock signal output to the audio DSP
26
LCD_DO
O
Serial data output to the liquid crystal display driver
27
ILL_IN
I
Illuminate line detect signal input terminal Not used
28
LCD_CE
O
Chip enable signal output to the liquid crystal display driver
29
LCD_CLK
O
Serial data transfer clock signal output to the liquid crystal display driver
30
DVCC3.3IO
-
Power supply terminal (+3.3V)
31
DVSSCOM
-
Ground terminal
32
DVCC1.2DRM
-
Power supply terminal (+1.2V)
33
DVCC1.2DRM
-
Power supply terminal (+1.2V)
34
DVSSCOM
-
Ground terminal
35
SWDCK
O
Debug terminal (for ICE) Not used
36
SWDIO
I/O
Debug terminal (for ICE) Not used
37 to 40
CD_BUS0 to
CD_BUS3
O
Serial data output to the audio DSP
41
CD_BUCK
O
Serial data transfer clock signal output to the audio DSP
42
DVCC33IO
-
Power supply terminal (+3.3V)
43
DVCC3.3DRM
-
Power supply terminal (+3.3V)
44
DVSSCOM
-
Ground terminal
45
CD_XCCE
O
Chip enable signal output to the audio DSP
46
USB_EN
-
Not used
47
CP_SEL
I
EEPROM setting terminal “H”: EEPROM use
48
DVCC1.2
-
Power supply terminal (+1.2V)
49
BT_TX
O
Serial transmit data output terminal Not used
50
BT_RX
I
Serial receive data input terminal Not used
51
BT_CTS
I
Serial receive data input terminal Not used
52
BT_RTS
O
Serial transmit data output terminal Not used
53
DVSS_COM
-
Ground terminal
54
BT_POWER
O
Power on/off control signal output terminal Not used
55
BT_RESET
O
Reset signal output terminal Not used
56
BT_MIC_DET
I
Microphone detection signal input terminal Not used
57
CP_RESET
O
Reset signal output to the EEPROM
58
MC_TX
O
Serial data output to the main system controller
59
MC_RX
I
Serial data input from the main system controller
60
I2C_SCL
O
Serial data transfer clock signal output terminal Not used
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