AD9398 Analog Devices, AD9398 Datasheet - Page 20

• Manufacturer Part Number: AD9398
• Description: Display Interface
• Manufacturer: Analog Devices

AD9398
Hex Address
0x7F
0x80
0x81
0x82
0x83
0x84
0x85
0x86
Read/Write
or Read
Only
Read
Read
Read
Read
Read
Read
Read
Read
Bits
[7:0]
[7:0]
[6:5]
4
[3:2]
[1:0]
[7:6]
[5:4]
[3:0]
[1:0]
[6:0]
[3:0]
[7:0]
Default
Value
Register Name
N [7:0]
AVI Infoframe Version
Active Format
Information Status
Bar Information
Scan Information
Colorimetry
Picture Aspect Ratio
Active Format Aspect
Ratio
Nonuniform Picture
Scaling
Video Identification
Code
Pixel Repeat
Active Line Start LSB
Rev. 0 | Page 20 of 44
AVI Infoframe
Description
Y [1:0] Indicates RGB, 4:2:2, or 4:4:4.
00 = RGB.
01 = YCbCr 4:2:2.
10 = YCbCr 4:4:4.
Active format information present.
0 = no data.
1 = active format information valid.
B [1:0].
00 = no bar information.
01 = horizontal bar information valid.
10 = vertical bar information valid.
11 = horizontal and vertical bar information valid.
S [1:0].
00 = no information.
01 = overscanned (television).
10 = underscanned (computer).
C [1:0].
00 = no data.
01 = SMPTE 170M, ITU601.
10 = ITU709.
M [1:0].
00 = no data.
01 = 4:3.
10 = 16:9.
R [3:0].
1000 = same as picture aspect ratio.
1001 = 4:3 (center).
1010 = 16:9 (center).
1011 = 14:9 (center).
SC[1:0].
00 = no known nonuniform scaling.
01 = picture has been scaled horizontally.
10 = picture has been scaled vertically.
11 = picture has been scaled horizontally and vertically.
VIC [6:0] video identification code—refer to CEA EDID
short video descriptors.
PR [3:0]—This specifies how many times a pixel has been
repeated.
0000 = no repetition (pixel sent once).
0001 = pixel sent twice (repeated once).
0010 = pixel sent 3 times.
1001 = pixel sent 10 times.
0xA—0xF reserved.
This represents the line number of the end of the top
horizontal bar. If 0, there is no horizontal bar. Combines
with Register 0x88 for a 16-bit value.