參數(shù)資料
型號(hào): AK8850
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: NTSC Digital Video Decoder
中文描述: NTSC制式數(shù)字視頻解碼器
文件頁(yè)數(shù): 86/99頁(yè)
文件大?。?/td> 1757K
代理商: AK8850
ASAHI KASEI
[AK8850]
STATUS 1 REGISTER ( R ) [ SUB ADDRESS 0x20 ]
This register shows the internal status of the AK8850.
Sub Address 0x20
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
COLKIL
FIELD
SCLKMODE1
SCLKMODE0
VSQLY
FRMSTD
VLOCK
NOSIG
Status 1 Register Definition
BIT
Register Name
R/W
Definition
bit 0
NOSIG
No Signal Indicates bit
R
No signal indicates
This data also output from NSIG pin.
0 : Signal is input
1 : No signal is input
bit 1
VLOCK
Vsync Lock Indicates bit
R
Shows synchronization states of the input
signal.
0 : Unsynchronaized to the input signal.
1 : Synchronaized to the input signal.
bit 2
FRMSTD
Frame Standard Indicates bit
R
Showing the Input video signal quality.
0 : Not 525/625 interlace video signal.
1 : 525/625 is interlace video signal.
bit 3
NSTD
Non Standard Signal Indicates
bit
R
Showing the input video signal quality.
This bit reflects the SCH status.
For component video signal input, this bit
depends on FRMSTD-bit. (This bit becomes 0 at
FRMSTD-bit is 1)
The data of this bit is also output from NSTD pin
0 : Standard signal is input.
1 : Non-standard signal is input.
bit 4
bit 5
SCLKMODE0
SCLKMODE1
Status Current Clock mode bit
R
Showing the clock-mode.
[ CLKMODE1:CLKMODE0 ] =
00 : Working with Fixed clock mode.
01 : Working with Line-Locked Clock mode
10 : Reserved
11 : Working with Frame-Locked Clock mode
bit 6
FIELD
Field Status bit
Showing the Field status
0 : ODD Field
1 : EVEN Field
bit 7
COLKIL
Color Killer Active bit
R
Showing the Color Killer Status
0 : Color Killer is not active
1 : Color Killer is active
Rev.0
87
2003/01
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