AD9882 Analog Devices, AD9882 Datasheet - Page 24
AD9882
Manufacturer Part Number
AD9882
Description
Dual Interface for Flat Panel Displays
Manufacturer
Analog Devices
Datasheet
1.AD9882.pdf
(36 pages)
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AD9882
Hex
Address
14
15
16
17
18
19
1A
1B
1C
1D
1E
Read and Write
or Read Only
R/W
RO
RO
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
Bit
0
7
6
5
4
3
7
6
5
4
3
2
7–0
7–0
7–0
7–0
7
6–0
7–0
7–0
7–0
Default
Value
**** ***0
0000 0000
0000 000X
0000 010X
0011 1111
1*** ****
*111 0000
0000 1111
Table IX. Control Register Map (continued)
Register Name
Analog Hsync Active
Active Hsync
Test Register
Test Register
Test Register
Enable 4:2:2
Analog SOG Active
Analog Vsync Active
DVI Active
Active Interface
Hsync Polarity Detected
Active Vsync
Vsync Polarity Detected
Coast Polarity Detected
HDCP Keys Detected
Test Register
Test Register
MDA and MCL
Test Register
Test Register
Test Register
–24–
Function
0 = 4:4:4 mode
1 = 4:2:2 mode
0 = Hsync not detected
1 = Hsync detected
0 = Sync signal not detected on green channel
1 = Sync signal detected on green channel
0 = Vsync not detected
1 = Vsync detected
0 = Digital interface clock not detected
1 = Digital interface clock detected
0 = Analog interface active
1 = DVI interface active
0 = Hsync from the Hsync input pin
1 = Hsync from the SOG input
0 = Active low polarity detected
1 = Active high polarity detected
0 = Vsync from the Vsync input pin
1 = Vsync from SOG
0 = Active high polarity detected
1 = Active low polarity detected
0 = Active low polarity detected
1 = Active high polarity detected
This function works only with internal coast.
0 = Not detected
1 = Detected
Must be set to 1000 0000 for proper operation.
Must be set to 1100 000x for proper operation.
Must be set to 0111 110x for proper operation.
Must be set to default for proper operation.
0 = MDA and MCL three-stated
1 = MDA and MCL not three-stated
Must be set to *110 0111 for proper operation.
Must be set to default for proper operation.
Reserved for future use.
Reserved for future use.
REV. A