Analog Devices AD9380 Manual page 48

AD9380
0x81—Bits[6:5] Y [1:0]
This register indicates whether data is RGB, 4:4:4, or 4:2:2.
Table 28.
Y Video Data
00 RGB
01 YCbCr 4:2:2
10 YCbCr 4:4:4
0x81—Bits[4] Active Format Information Present
0 = no data. 1 = active format information valid.
0x81—Bits[3:2] Bar Information
Table 29.
B Bar Type
00 No bar information
01 Horizontal bar information valid
10 Vertical bar information valid
11 Horizontal and vertical bar information valid
0x81—Bits[1:0] Scan Information
Table 30.
S [1:0] Scan Type
00 No information
01 Overscanned (television)
10 Underscanned (computer)
0x82—Bits[7:6] Colorimetry
Table 31.
C [1:0] Colorimetry
00 No data
01 SMPTE 170M, ITU601
10 ITU 709
0x82—Bits[5:4] Picture Aspect Ratio
Table 32.
M[1:0] Aspect Ratio
00 No data
01 4:3
10 16:9
0x82—Bits[3:0] Active Format Aspect Ratio
Table 33.
R [3:0] Active Format A/R
0x8 Same as picture aspect ratio (M [1:0])
0x9 4:3 (center)
0xA 16:9 (center)
0xB 14:9 (center)
0x83—Bits[1:0] Nonuniform Picture Scaling
Table 34.
SC [1:0] Picture Scaling
00 No known nonuniform scaling
01 Has been scaled horizontally
10 Has been scaled vertically
11 Has been scaled both horizontally and vertically
0x84—Bits[6:0] Video ID Code
See CEA EDID short video descriptors.
www.BDTIC.com/ADI
0x85—Bits[3:0] Pixel Repeat
This value indicates how many times the pixel was repeated.
0x0 = no repeats, sent once, 0x8 = 8 repeats, sent 9 times, and
so on.
0x86—Bits[7:0] Active Line Start LSB
Combined with the MSB in Register 0x88, these bits indicate
the beginning line of active video. All lines before this comprise
a top horizontal bar. This is used in letter box modes. If the 2-
byte value is 0x00, there is no horizontal bar.
0x87—Bits[6:0] New Data Flags (NDF)
This register indicates whether data in specific sections has
changed. In the address space from 0x80 to 0xFF, each register
address ending in 0b111 (for example, 0x87, 0x8F, 0x97, 0xAF)
is an NDF register. They all have the same data and all are reset
upon reading any one of them.
Table 35.
NDF Bit Number
0
1
2
3
4
5
6
0x88—Bits[7:0] Active Line Start MSB
See Register 0x86.
0x89—Bits[7:0] Active Line End LSB
Combined with the MSB in Register 0x8A, these bits indicate
the last line of active video. All lines past this comprise a lower
horizontal bar. This is used in letter-box modes. If the 2-byte
value is greater than the number of lines in the display, there is
no lower horizontal bar.
0x8A—Bits[7:0] Active Line End MSB
See Register 0x89.
0x8B—Bits[7:0] Active Pixel Start LSB
Combined with the MSB in Register 0x8C, these bits indicate
the first pixel in the display which is active video. All pixels
before this comprise a left vertical bar. If the 2-byte value is
0x00, there is no left bar.
0x8C—Bits[7:0] Active Pixel Start MSB
See Register 0x8B.
0x8D—Bits[7:0] Active Pixel End LSB
Combined with the MSB in Register 0x8E, these bits indicate
the last active video pixel in the display. All pixels past this
comprise a right vertical bar. If the 2-byte value is greater than
the number of pixels in the display, there is no vertical bar.
Rev. 0 | Page 48 of 60
Changes Occurred
AVI infoframe
Audio infoframe
SPD infoframe
MPEG source infoframe
ACP packets
ISRC1 packets
ISRC2 packets