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MEX-BT4000E/BT4000P/BT4000U/BT4050U/BT4054U
MAIN BOARD IC601 TMPM321FEFG (SY) (CD DRIVE/USB CONTROLLER)
Pin No.
Pin Name
1
AVSS
2
VREFH
3
RESET
4
MODE
5
OPEN_REQ
6
EJECT_OK
7
NC
8
WAKEUP
9 to 11
NC
12
BUI_N
13
DVSS
14
NC
15
CD_ZDET
16
DEC_XMUTE
17
DEC_LRCK
18
DEC_BCK
19
DEC_DATA
20
DEC_GATE
21
DEC_REQ
22
CD_SO
23
CD_SI
24
CD_SCLK
25
MEC_SELFSW
26
NC
27
DEC_INT
28
CD_XRST
29
CD_XCCE
30, 31
NC
32
Z/Y_CHECK
33
DVCC3
34
DVSS
35
DRV_ON
36
MEC_LOAD
37
MEC_EJECT
38
DEC_SSTBY
39
MEC_LIMIT
40
MEC_INSW
41
MEC_DSW
42, 43
NC
44
XLINE
45
XINITO
46
FE/SBAD_SEL
47
Z/Y_SEL
48
NC
49
MECON_CHECK
50
CDON_CHECK
51
A_ATT
52
MECON
53
CDON
54
ZMUTE
55
TxD
56
RxD
57, 58
NC
59
DVCC3
60
DVSS
61
SWDIO
62
SWCLK
63
TRACECLK
42
I/O
-
Ground terminal
I
Reference voltage (+3.3V) input terminal (for A/D converter)
I
Reset signal input from the system controller
I
Operation mode setting terminal
-
Not used
I
Eject OK signal input terminal
-
Not used
I
System wake up signal input from the system controller
-
Not used
I
Back up power supply detection signal input terminal
-
Ground terminal
-
Not used
I
Zero detection signal input from the audio DSP
O
Muting on/off control signal output to the audio DSP
O
L/R sampling clock signal output to the audio DSP
O
Bit clock signal output to the audio DSP
O
Digital audio data output to the audio DSP
O
Gate signal output to the audio DSP
I
Request signal input from the audio DSP
O
Serial data output to the audio DSP
I
Serial data input from the audio DSP
I
Serial data transfer clock signal output to the audio DSP
I
Detection signal input from the CD section (self switch)
-
Not used
I
Interrupt signal input from the audio DSP
O
Reset request signal output to the audio DSP
O
Chip enable signal output to the audio DSP
-
Not used
-
Not used
-
Power supply terminal (+3.3V)
-
Ground terminal
O
Driver control signal output to the CD section
O
Motor (Loading) signal output to the CD section
O
Motor (Eject) signal output to the CD section
O
SRAM standby mode control signal output to the audio DSP
I
Detection signal input from the CD section (limit switch)
I
Detection signal input from the CD section (in switch)
I
Detection signal input from the CD section (D switch)
-
Not used
-
Not used
-
Not used
-
Not used
I
Z/Y setting terminal
-
Not used
I
Power supply voltage detection terminal for CD mechanism section
I
Power supply voltage detection terminal for CD section
O
Muting on/off control signal output terminal
O
Power supply on/off control signal output terminal for the CD mechanism section
O
Power supply on/off control signal output terminal for the CD section
O
Muting on/off control signal input from the system controller
O
Serial data output to the system controller
I
Serial data input from the system controller
-
Not used
-
Power supply terminal (+3.3V)
-
Ground terminal
-
Not used
-
Not used
-
Not used
Description
"L": reset
Fixed at "L" in this unit
Not used
"L" is input at low voltage
"L": muting on
"L": reset
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