SUB ADDRESS = 0EH BIT NO. FUNCTION DESCRIPTIO" />
參數(shù)資料
型號(hào)： HMP8117CNZ
廠商： Intersil
文件頁(yè)數(shù)： 21/45頁(yè)
文件大?。?/td> 0K
描述： IC VIDEO DECODER NTSC/PAL 80PQFP
標(biāo)準(zhǔn)包裝： 66
類型： 視頻解碼器
應(yīng)用： 視頻
電壓 - 電源，模擬： 4.75 V ~ 5.25 V
電壓 - 電源，數(shù)字： 4.75 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 80-BQFP
供應(yīng)商設(shè)備封裝： 80-QFP（14x20）
包裝： 托盤
28
FN4643.4
July 29, 2009
TABLE 22. VIDEO STATUS REGISTER
SUB ADDRESS = 0EH
BIT
NO.
FUNCTION
DESCRIPTION
RESET
STATE
7
Vertical Lock
Status
This bit is read-only. Data written to this bit is ignored.
If set to “1”, the decoder is vertically locked to the input signal.
0B
6
Horizontal Lock
Status
This bit is read-only. Data written to this bit is ignored.
If set to “1”, the decoder is horizontally locked to the input signal.
0B
5
Color Lock
Status
This bit is read-only. Data written to this bit is ignored.
If set to “1”, the decoder is chroma locked to the input signal.
0B
4
Input Video
Detect Status
This bit is read-only. Data written to this bit is ignored.
If set to “1”, video is detected on the input signal.
0B
3-1
MV Detection Status These bits are read-only. Data written to this bit is ignored.
000B = No MV present
001B = PSP present, No Stripes
010B = PSP present, 2-Line Stripes
011B = PSP present, 4-line Stripes
100B = reserved
101B = reserved
110B = No PSP present, 2-line Stripes (invalid MV scheme, may indicate false detection)
111B = No PSP present, 4-line Stripes (invalid MV scheme, may indicate false detection)
000B
0
Auto Detect
Video Standard
Status
This bit is read-only. Data written to this bit is ignored.
If set to “1”, the decoder determined the video standard on the input signal.
This bit is enabled by the Input Format Register 01H bit 4.
0B
TABLE 23. INTERRUPT MASK REGISTER
SUB ADDRESS = 0FH
BIT
NO.
FUNCTION
DESCRIPTION
RESET
STATE
7
Genlock Loss
Interrupt Mask
If set to “1”, an interrupt is enabled for the loss of genlock.
0B
6
Input Signal Loss
Interrupt Mask
If set to “1”, an interrupt is enabled for the loss of input video signal.
0B
5
Closed Caption
Interrupt Mask
If set to “1”, an interrupt is enabled for new data in the closed caption data registers.
0B
4WSS
Interrupt Mask
If set to “1”, an interrupt is enabled for new data in the WSS data registers.
0B
3
Teletext
Interrupt Mask
If set to “1”, an interrupt is enabled for the detection of teletext data in the current field.
0B
2
MV Interrupt Mask
If set to “1”, an interrupt is enabled for a change in the MV Detection Status Register 0EH.0B
1
Auto Detect
Video Standard
Interrupt Mask
If set to “1”, an interrupt is enabled for the successful auto detection of a video standard.
0B
0
Vertical Sync
Interrupt Mask
If set to “1”, an interrupt is enabled for the start of a new field.
0B
HMP8117
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