
DV-285-S
64
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2
4
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2
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4
C
D
F
A
B
E
No.
Pin Name
I/O
Pin Function
No.
Pin Name
I/O
Pin Function
1
AGND
–
Analog ground
2
DVDA
I
AC coupled input path A
3
DVDB
I
AC coupled input path B
48
DVDD18
-
1.8V Power pin for internal digital
circuitry
4
DVDC
I
AC coupled input path C
5
DVDD
I
AC coupled input path D
49
IOA3
I/O
Microcontroller address 3/IO
6
DVDRFIP
I
AC coupled DVD RF signal input RFIP
7
DVDRFIN
I
AC coupled DVD RF signal input RFIN
50
8
MA
I
DC coupled main-beam RF signal input A
9
MB
I
DC coupled main-beam RF signal input B
51
IOA5
I/O
Microcontroller address 5 / IO
10
MC
I
DC coupled main-beam RF signal input C
11
MD
I
DC coupled main-beam RF signal input D
52
IOA6
I/O
I/O
Microcontroller address 6/IO
12
SA
I
DC coupled sub-beam RF signal input A
53
I/O
Microcontroller address 7/IO
13
SB
I
DC coupled sub-beam RF signal input B
54
HIGHA0
I/O
14
SC
I
DC coupled sub-beam RF signal input C
55
DVDD3
DVDD3
I/O
Microcontroller address 4/IO
Microcontroller address 4/IO
15
SD
I
DC coupled sub-beam RF signal input D
56
IOA1
-
-
Microcontroller address 1/IO
16
CDFON
I
CD focusing error negative input
57
IOA0
I/O
17
CDFOP
I
CD focusing error positive input
58
DVSS
IOA7
I/O
3.3VPower pin for internal digital circuitry
3.3VPower pin for internal digital circuitry
3.3VPower pin for internal digital circuitry
18
TNI
I
3 beam satellite PD signal negative input
59
DVDD3
I/O
Microcontroller address 8
19
TPI
I
3 beam satellite PD signal positive input
60
IOA18
I/O
Flash address 18/IO
20
MDI1
I
Laser power monitor input
61
IOA19
21
MDI2
I
Laser power monitor input
62
DVSS
–
3.3V Ground pin for internal digital circuitry
1.8V Ground pin for internal digital circuitry
22
LDO2
O
Laser driver output
63
–
23
LDO1
O
Laser driver output
64
URD#
I
24
SVDD3
–
Analog power 3.3V
65
A17
–
25
CSO
O
Central servo/Positive main beam summing output
66
IOWR#
I/O
Flash write enable, active low/IO
26
RFLVL
O
RFRP low pass, or Negative main beam summing output
67
A16
O
O
Flash adress 16
Flash adress 17
27
SGND
–
Analog ground
68
HIGHA7
I/O
Microcontroller address 15
28
V2REFO
–
Reference voltage 2.8V
69
HIGHA6
I/O
Microcontroller address 14
29
V20
I/O
Reference voltage 2.0V
70
HIGHA5
I/O
Microcontroller address 13
30
VREFO
I/O
Reference voltage 1.4V
71
HIGHA4
I/O
Microcontroller address 12
31
FEO
O
Focus error monitor output
72
HIGHA3
I/O
Microcontroller address 11
32
TEO
O
Tracking error monitor output
73
UWR#
33
TEZISLV
I/O
TE Slicing Level
74
HIGHA2
Microcontroller adress 10
75
HIGHA1
I/O
Microcontroller adress 9
76
IOA20
I/O
Flash adress 20/IO
I/O
Flash adress 0 / IO
77
IOCS#
I/O
Flash chip select, active low/IO
Disk motor control output. PWM output
78
AD7
I/O
Microcontroller writer strobe, active low
Microcontroller read strobe, active low
Feed motor control. PWM output
79
IOOE#
I/O
Flash output enable, active low/IO
Tray PWM output/Tray open output
80
DVDD18
–
1.8V power pin for internal digital circuitry
General PWM output, or Version AD input9
81
AD0
I
Microcontroller address/data 0
Tracking servo output. PDM output of
tracking servo compensator.
87
AD1
I
Microcontroller address/data 1
89
AD2
I
Microcontroller address/data 2
Focus servo output. PDM output of
focus servo compensator
90
AD3
I
Microcontroller address/data 3
88
DVSS
–
3.3V Ground pin for internal digital circuitry
43
FG(Diogital pin)
–
Motor Hall sensor input, or Version AD input 8 circuitry
84
AD4
I
Microcontroller address/data 4
44
GPIO0
I/O
Vertical sysnc input / output
85
AD5
I
Microcontroller address/data 5
45
GPIO1
I/O
Horizontal sysnc input / output
86
AD6
I
Microcontroller address/data 6
Microcontroller address/data 7
• MPEG/MICON/RF-AMP CPU
Pin Function
IC8K089D(MT1389D) : (DVD MT ASSY : IC4001)
46
GPIO2
I/O
Audio DAC master clock of SPDIF input
47
I/O
82
IOA21 I/O
Flash address 21/IO
While External FLASH size <= 2MB:
Version AD input port 0, or
GPIO
83
ALE
I/O
Microcontroller address latch enable
IOA2
Microcontroller address 2/IO
IOA4
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