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AD9981/PCB 数据表(PDF) 27 Page - Analog Devices

部件名 AD9981/PCB
功能描述  High Performance 10-Bit Display Interface
PDF  44 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD9981/PCB 数据表(HTML) 27 Page - Analog Devices

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AD9981
Rev. 0 | Page 27 of 44
Hexadecimal
Address
Read and
Write or
Read Only
Bits
Default
Value
Register Name
Description
1
**** *0**
Sync Processing Input Select.
Selects the sync source for the sync processor.
0 = Sync processing uses raw Hsync/SOGIN.
1 = Sync processing uses regenerated Hsync from sync filter.
0
Must be set to 1 for proper operation.
0x21
R/W
7:0
0010 0000
Must be set to default for proper operation.
0x22
R/W
7:0
0011 0010
Must be set to default for proper operation.
0x23
R/W
7:0
0000 1010
Sync Filter
Window Width
Sets the window of time around the regenerated Hsync leading
edge (in 25 ns steps) that sync pulses are allowed to pass
through.
0x24
RO
7
_*** ****
Sync Detect
Hsync0 Detection Bit.
0 = Hsync0 is not active.
1 = Hsync0 is active.
6
*_** ****
Hsync1 Detection Bit.
0 = Hsync 1 is not active.
1 = Hsync 1 is active.
5
**_* ****
Vsync 0 Detection Bit.
0 = Vsync0 is not active.
1 = Vsync0 is active.
4
***_ ****
Vsync1 Detection Bit.
0 = Vsync1 is not active.
1 = Vsync1 is active.
3
**** _***
SOG0 Detection Bit
0 = SOG0 is not active.
1 = SOG0 is active.
2
**** *_**
SOG1 Detection Bit
0 = SOG1 is not active.
1 = SOG1 is active.
1
**** **_*
Coast Detection Bit.
0 = External Coast is not active.
1 = External Coast is active.
0
**** ***_
Clamp Detection Bit.
0 = External clamp is not active.
1 = External clamp is active.
0x25
RO
7
_*** ****
Sync Polarity
Detect
Hsync 0 Polarity.
0 = Hsync0 polarity is active low.
1 = Hsync0 polarity is active high.
6
*_** ****
Hsync1 Polarity.
0 = Hsync1 polarity is active low.
1 = Hsync1 polarity is active high.
5
**_* ****
Vsync0 Polarity.
0 = Vsync0 polarity is active low.
1 = Vsync0 polarity is active high.
4
***_ ****
Vsync1 Polarity.
0 = Vsync1 polarity is active low.
1 = Vsync1 polarity is active high.
3
**** _***
Coast Polarity.
0 = External Coast polarity is active low.
1 = External Coast polarity is active high.
2
**** *_**
Clamp Polarity.
0 = External clamp polarity is active low.
1 = External clamp polarity is active high.
1
**** **_*
Extraneous Pulses Detected.
0 = No equalization pulses detected on Hsync.
1 = Extraneous pulses detected on Hsync.



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