MHC-V77DW
76
• IC Pin Function Descriptions
89G BOARD (1/3) IC8003 CXD9992R (FOCUS/TRACKING ERROR AMP CD SYSTEM PROCESSOR DIGITAL SERVO PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
AVDD12_2
-
Power supply terminal (+1.2V) (for analog system)
2
AVDD33_1
-
Power supply terminal (+3.3V) (for analog system)
3
XTALI
I
System clock input terminal (27 MHz)
4
XTALO
O
System clock output terminal (27 MHz)
5
V20
O
Reference voltage (+2V) output to the optical pick-up block
6
V14
O
Reference voltage (+1.4V) output to the coil/motor driver
7
REXT / GPO5
I
Current reference input terminal
8
MDI1
I
Laser power monitor input from the optical pick-up block
9
LDO1
O
Laser diode drive signal output to the optical pick-up block (for CD)
10
LDO2
O
Laser diode drive signal output to the optical pick-up block (for DVD)
11
AVDD33_2
-
Power supply terminal (+3.3V) (for analog system)
12
DMO
O
Spindle motor control signal output to the motor driver
13
FMO
O
Sled motor control signal output to the motor driver
14
TRAY_OPEN/ GPI0
CD_VR
O
Variable resistor control signal output to the optical pick-up block (for CD)
15
TRAY_CLOSE/ GPI0
DVD_VR
O
Variable resistor control signal output to the optical pick-up block (for DVD)
16
TRO
O
Tracking coil control signal output to the coil/motor driver
17
FOO
O
Focus coil control signal output to the coil/motor driver
18
FG/ GPIO2
O
The switch of OPU PDIC
19
USB_DP
I/O
Two-way USB data (+) bus terminal
20
USB_DM
I/O
Two-way USB data (–) bus terminal
21
VDD33_USB
-
Power supply terminal (+3.3V) (for USB)
22
PAD_VRT
I/O
USB generating reference current terminal
23
VDD12_USB
-
Power supply terminal (+1.2V) (for USB)
24
SF_CS_
O
Chip select signal output to the serial
fl
ash
25
SF_DO
O
Serial data output to the serial
fl
ash
26
SF_DI
I
Serial data input from the serial
fl
ash
27
SF_CK
O
Serial clock signal output to the serial
fl
ash
28
UP1_6 / SCL
I/O
Two-way I2C clock signal with the EEPROM
29
UP1_7 / SDA
I/O
Two-way I2C data signal with the EEPROM
30
GPIO11 (RXD)
-
BENTEN/UTXD1
31
GPIO6 (TXD)
-
HA7 connector
32
PRST_
I
Reset signal input from the system controller “L”: reset
33
IR / GPI
-
NO-USE PIN
34
GPIO3 / INT_ (CEC)
NC
-
URXD1
35
GPIO4 (VSCK) NC
-
NC
36
GPIO13 (VSTB) NC
-
XIFBSY
37
GPIO9 (SD-DATA) NC
-
NC
38
GPIO8 (SD-CMD) NC
-
NC
39
GPIO7 / CKE_ (89G_
CEC)
-
NC
40
DVDD33_40
-
Power supply terminal (+3.3V) (for digital system)
41
RD0
I/O
Two-way data bus with the SD-RAM
42
RD1
I/O
Two-way data bus with the SD-RAM
43
RD2
I/O
Two-way data bus with the SD-RAM
44
RD3
I/O
Two-way data bus with the SD-RAM
45
RD4
I/O
Two-way data bus with the SD-RAM
46
RD5
I/O
Two-way data bus with the SD-RAM
47
RD6
I/O
Two-way data bus with the SD-RAM
48
RD7
I/O
Two-way data bus with the SD-RAM
49
DQM0
O
Data mask signal output to the SD-RAM
50
RD15
I/O
Two-way data bus with the SD-RAM
51
RD14
I/O
Two-way data bus with the SD-RAM
