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HCD-DX400/DX400A
HCD-DX400/DX400A
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• IC Pin Function Description
MAIN BOARD IC2 CXD9971R(LE) LQFP (RF AMP, SERVO DSP, MPEG DECODER) (DX400)
CXD9970R(LE) LQFP (RF AMP, SERVO DSP, MPEG DECODER) (DX400A)
Pin No.
Pin Name
I/O
Description
1
RFA
I
RF main beam input A
2
RFB
I
RF main beam input B
3
RFC
I
RF main beam input C
4
RFD
I
RF main beam input D
5
RFE
I
RF sub beam input F
6
RFF
I
RF sub beam input E
7
AVDD18_2
-
Analog 1.8V power
8
AVDD33_1
-
Analog 3.3V power
9
XTALI
I
27MHz crystal input
10
XTALO
O
27MHz crystal output For Eastech use only
11
AGND33 -
Analog
Ground
12
V20
O
Reference voltage 2.0V
13
V14
O
Reference voltage 1.4V
14
REXT I
Current reference input. It generates reference current for RF path. Connect an external 15K
resistor to this pin and AVSS
resistor to this pin and AVSS
15
MDI1
I
Laser power monitor input
16
MDI2
I
Laser power monitor input
17
LDO1
O
Laser driver output (for CD)
18
LDO2
O
Laser driver output (for DVD)
19
AVDD33_2
-
Analog 3.3V power
20
DMO
O
Disk motor control output. PWM output For Eastech use only
21
FMO
O
Feed motor control. PWM output
22
TRAY_OPEN
O
Tray PWM output/Tray open output
23
TRAY_CLOSE
O
Tray PWM output/Tray close output
24
TRO
O
Tracking servo output. PDM output of tracking servo compensator
25
FOO
O
Focus servo output. PDM output of focus servo compensator
26
FG
I
1) Motor Hall sensor input
27
USB_DP
I
USB port DPLUS analog pin
28
USB_DM
I
USB port DMINUS analog pin
29
VDD33_USB
-
USB Power pin 3.3V
30
VSS33_USB
-
USB ground pin
31
PAD_VRT
I
USB generating reference current
32
VDD18_USB
-
USB Power pin 1.8V
33
GPIO3
I/O
Serial for MCU communication
34
GPIO4
I
General purpose IO 4
35
GPIO6
I
General purpose IO 6
36
SF_CS_
O
Serial Flash Chip Select
37
SF_DO
O
Serial Flash Dout
38
SF_DI
I
Serial Flash Din
39
SF_CK
O
Serial Flash Clock
40
UP1_6
O
SPI CLK for PT6311
41
UP1_7
I/O
SPI DA for PT6311
42
ICE
I
Microcontroller ICE mode enable Not used
43
PRST#
I
Power on reset input, active low
44
IR
I
IR control signal input
45 to 49
RD0 to RD4
I/O
DRAM data 0 to DRAM data 4
50
DVDD33
-
3.3V power pin for internal digital circuitry
51 to 53
RD5 to RD7
I/O
DRAM data 5 to DRAM data 7
54
DVDD18
-
1.8V power pin for internal digital circuitry
55
DQM0
O
Data mask 0
56 to 59
RD15 to RD12
I/O
DRAM data 15 to DRAM data 12
60
DVSS
-
3.3V Ground pin for internal digital circuitry
61 to 64
RD11 to RD8
I/O
DRAM data 11 to DRAM data 8
65
DQM1
O
Data mask 1
66
RCLK O
Dram
clock
67
RA11
O
DRAM address bit 11
Pin No.
Pin Name
I/O
Description
68
DVDD33
-
3.3V power pin for internal digital circuitry
69 to 74
RA9 to RA4
O
DRAM address 9 to DRAM address 4
75
RWE#
O
DRAM Write enable, active low
76
CAS#
O
DRAM column address strobe, active low
77
RAS#
O
DRAM row address strobe, active low
78
BA0
O
DRAM bank address 0
79
DVSS18
-
1.8V Ground pin for internal digital circuitry
80
BA1
O
DRAM bank address 1
81
RA10
O
DRAM address 10
82, 83
RA0, RA1
O
DRAM address 0, DRAM address 1
84
DVDD33
-
3.3V power pin for internal digital circuitry
85, 86
RA2, RA3
O
DRAM address 2, DRAM address 3
87
GPIO7 I/O
No
used
88
GPIO8 I/O
No
used
89
GPIO9
I
Code downloading and debugging
90
DVDD18
-
1.8V power pin for internal digital circuitry
91
GPIO10
O
Code downloading and debugging
92
GPIO11
I/O
Serial for MCU communication
93
SPDIF O
No
used
94
GPIO13
O
SPI CS for PT6311
95
DACVDDC
-
3.3V power pin for video DAC circuitry
96
VREF
-
Bandgap reference voltage
97
FS
-
Full scale adjustment (suggest to use 560 ohm) For Eastech use only
98
DACVSSC
-
Ground pin for video DAC circuitry
99
CVBS
O
CVBS video output
100
DACVDDB
-
3.3V power pin for video DAC circuitry
101
DACVDDA
-
3.3V power pin for video DAC circuitry
102
Y/G
O
Y video output
103
B/CB/PB
O
PB video output
104
R/CR/PR
O
PR video output
105
AADVSS
-
Ground pin for 2ch audio ADC circuitry
106
EAKIN2 O
No
used
107
ADVCM
-
2ch audio ADC reference voltage C
108
AKIN1
I
Audio ADC input 1
109
AADVDD
-
3.3V power pin for 2ch audio ADC circuitry
110
APLLVDD3
-
3.3V Power pin for audio clock circuitry
111
APLLCAP
-
APLL external capacitance connection
112
ADACVSS2
-
Ground pin for audio DAC circuitry
113
ADACVSS1
-
Ground pin for audio DAC circuitry
114
ARF / LFE
O
CXD9770R (LE)/CXD9771R (LE) reset MCU at upgread MCU software
115
ARS O
No
used
116
AR
O
Audio DAC right channel output
117
AVCM
-
Audio DAC reference voltage
118
AL
O
Audio DAC left channel output
119
ALS
I
LOADER LIMIT detection
120
ALF /CENTER
O
No used
121
ADACVDD1
-
3.3V power pin for audio DAC circuitry
122
ADACVDD2
-
3.3V power pin for audio DAC circuitry
123
AVDD18_1
-
Analog 1.8V power
124
AGND18 -
Analog
Ground
125
RFIP
I
AC coupled DVD RF signal input RFIP
126
RFIN
I
AC coupled DVD RF signal input RFIN
127
RFG
I
Main beam, RF AC input path
128
RFH
I
Main beam, RF AC input path
Ver. 1.5
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