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2.4
TECHNINAL INFORMATION
2.4.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin
Pin name
I/O
No.
1
VssP2
-
GND
2
VssC4
-
GND
3
V1.8C4
I
1.8V (Digital)
4
V3.3A3
I
3.3V
5
VrefP_Sdac
I
3.3V (Positive)
6
VrefN_Sdac
-
GND
7
VrefP_Sdac
I
3.3V (Negative)
8
VrefN_Sdac
-
GND
9
VrefP_Sdac
I
3.3V (Positive)
10 XtalIn
I
24.576MHz for system clock
11 XtalOut
O
24.576MHz for system clock
12 VssA1
-
GND
13 NECK
I
V-guard input/ I/O switch
14 CONT
I
1.8V regulator control
15 V5P1
I
+5V
16 Ph2
-
Phase-2 filter
17 Ph1
-
Phase-1 filter
18 Gnd1
-
GND
19 SecPll
-
SECAM PLL decoupling
20 Dec8G
-
Bandgap decoupling
21 EW
O
East-West drive output
22 VDRB-
O
Vertical drive B output
23 VDRA+
O
Vertical drive A output
24 Vif1
I
Video IF input 1
25 Vif2
I
Video IF input 2
26 Vsc
-
Vertical sawtooth capacitor
27 Iref
I
Reference current input
28 GndIF
-
GND
29 Sif1
I
Sound IF input 1
30 Sif2
I
Sound IF input 2
31 AGC
O
Tuner AGC output
32 EHT
I
EHT/overvoltage protection input
33 Ssif/RefIn/Avl/
O
Automatic Volume Levelling/ sound IF input / subcar-
RefOut
rier reference output / external reference signal input
for I signalmixer for DVB operation
34 L3
I
Audio-L3 input (left signal)
35 R3
I
Audio-R3 input (right signal)
36 L-OUT
O
Audio L output
37 R-OUT
O
Audio R output
38 DecsDem
-
Decoupling sound demodulator
39 QssO/AmO/
O
QSS intercarrier output / AM output / deemphasis /
AudeEm
(front-end audio out)
40 Gnd2
-
GND
41 PllIf
-
IF-PLL loop filter
42 SifAgc
-
AGC sound IF
43 IfVo/FmRo/DvbO
O
Not used
44 NC
O
Not used
45 V8AudioSwitches
I
8V
46 AgcSsif
-
AGC capacitor second sound IF
47 V5P2
I
5V
48 V-OUT
O
Video output
49 L1
I
Audio-L1 input
50 R1
I
Audio-R1 input
51 V3
I
Video V3 input
52 C4
I
Not used
53 Audio2InL
I
Not used
54 Audio2InR
I
Not used
55 V2/Y
I
Video V2 input
56 L2
I
Audio L2 input (Left signal)
57 R2
I
Audio R2 input (right signal)
58 Y3/Cvbs
I
S-Video Y1 input
59 C1
I
S-Video C1 input
60 AudioLsL
O
Audio L output for audio power amplifier
61 AudioLsR
O
Audio R output for audio power amplifier
62 HP-L
O
Not used
63 HP-R
O
Not used
64 CVBSO/PIP
O
CVBS / PIP output
Pin
Function
No.
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100 V1.8C2
101 VssC2
102 TIMER
103 TIMER
104 VER_PROTECT
105 S_REDUCE
106 P00/I2SDI1
107 POWER
108 SCL1
109 SDA1
110 V3.3P
111 ROTATION
112 3.58/OTHER
113 A_MUTE
114 4.5/OTHER
115 PROT
116 ECO_IN
117 V1.8C1
118 DecV1V8
119 KEY_IN
120 VDO-DET
121 VSSC1+P1
122 S_V_DET
123 P25/PWM4
124 V1.8C3
125 VssC3
126 P12/Int2
127 SDA0
128 SCL0
Pin name
I/O
SVM
O
Not used
FbiSo
I
Flyback input/sandcastle output
Hout
O
Horizontal output
VssComb
-
GND
V5Comb
I
5V
Vin/R2/Pr
I
PIP R input
Uin/B2/Pb
I
PIP B input
Yin/G2/Y
I
PIP G input
Ysync
I
Not used
Yout
O
Not used
Uout/INSSW2
I
YUV insertion input
NC
O
Not used
INSSW3
I
YUV insertion input
R3/Pr
I
Component PR input (Video-2)
G3/Y
I
Component Y input (Video-2)
B3/Pb
I
Component PB input (Video-2)
Gnd3
-
GND
V5P3
I
5V
BCL
I
Beam current limiter input
BLKIN
I
Black current input
Rout
O
R output
Gout
O
G output
Bout
O
B output
V3.3A1
I
3.3V
RefAdN
-
GND
V3.3RefAdP
I
3.3V (Positive)
RefAd
I
3.3/2V
GndA
-
GND
V1.8A
I
1.8V
V3.3A2
I
3.3V
VssADC
-
GND
V1.8ADC
I
1.8V
REMOTE
I
Remote control
PW_LED
I
POWER LED control
PW_LED
I
POWER LED control
I
1.8V
-
GND
-
Not used
-
Not used
O
X-ray protect
O
Sound control
O
Not used
O
SUB POWER control
I
I2C bus clock
I/O I2C bus data
I
3.3V
O
Rotation
O
NTSC 3.58 detection
O
Audio muting
O
NTSC 4.43 detection
I
Protect
I
ECO sensor level detection
I
1.8V (Digital)
I
1.8V
I
Key scan data
I
Video DET input
-
Digital GND
I
S-Video DET input
O
GTVA_reset
I
1.8V (Digital)
-
GND
I
External interrupt
I/O I2C bus data (for memory)
I
I2C bus clock (for memory)
Function
(No.YA444)1-5
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