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參數(shù)資料
| 型號： | STV0056A |
| 廠商： | 意法半導體 |
| 英文描述： | Satellite Sound and Video Processor(衛(wèi)星探測和視頻處理器) |
| 中文描述： | 衛(wèi)星聲音和視頻處理器（衛(wèi)星探測和視頻處理器） |
| 文件頁數(shù)： | 18/26頁 |
| 文件大?。?/td> | 247K |
| 代理商： | STV0056A |
CONTROL REGISTERS
(continued)
Reg 2
write only
Bit (default F7
HEX
)
0
H
Select video source for scart 1 O/P
1
H
Select video source for scart 1 O/P
2
H
Select video source for scart 1 O/P
3
L
Select 4.000MHz or 8.000MHz clock speed (L = 8MHz)
4
H
Select audio source for volumeoutput (Switch K1)
5
H
Select audio source for volumeoutput (Switch K1)
6
H
Select Left/Right/Stereofor volume output
7
H
Select Left/Right/Stereofor volume output
Reg 3
Bit (default F7
HEX
)
0
H
Select video source for scart 2 O/P
1
H
Select video source for scart 2 O/P
2
H
Select video source for scart 2 O/P
3
L
Videodeemphais2 / 22kHz(H : 22kHz)
4
H
Select audio source for Scart 2 output (Switch K5)
5
H
Select audio source for Scart 2 output (Switch K5)
6
H
Audio deemphasisselect (Switch K2)
7
H
Audio deemphasisselect (Switch K2)
write only
Reg 4
Bit (default BF
HEX
)
0
H
Select source for video decoderO/P
1
H
Select source for video decoderO/P
2
H
Select source for video decoderO/P
3
H
Stand-by or low power mode (H = low power)
4
H
Select audio source for Scart 3 output (Switch K6)
5
H
Select audio source for Scart 3 output (Switch K6)
6
L
Black leveladjust on Scart 3 video
7
H
Black leveladjust on Scart 3 video
write only
Reg 5
Bit (default B5
HEX
)
0
H
FM deviation selection-- default value for 50kHz modulation
1
L
FM deviation selection
2
H
FM deviation selection
3
L
FM deviation selection
4
H
FM deviation selection
5
H
FM deviation selection(L = double the FM deviation)
6
L
Select 22kHz for I/O
(Pin 29 / STV0056A)
7
H
Select TP50a (H) or I/O
(Pin 29 / STV0056A).TP50a for testonly.
write only
Reg 6
Bit (default 86
HEX
)
0
L
Status of I/O
1
H
Select datadirection of I/O1 ( H = output)
2
H
Select frequency synthesizer1 OFF/ON(L = OFF)
3
L
Select frequency synthesizer2 OFF/ON(L = OFF)
4
L
Select RF source (L= OFF) to FM det 1
5
L
Select RF source (L= OFF) to FM det 2
6
L
Select frequency for PLLsynthesizer - LSB (bit 0) of 10-bit value
7
H
Select frequency for PLLsynthesizer - bit 1 of 10-bitvalue
write/read
STV0056A
18/26
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