Datasheet
AD9393
Rev. 0 | Page 17 of 40
Hex Address Read/Write Bits
Default
Value Register Name Description
0x81 Read [6:5] 0 Y[1:0] Y[1:0] indicates RGB, 4:2:2, or 4:4:4.
00 = RGB.
01 = YCrCb 4:2:2.
10 = YCrCb 4:4:4.
[4] 0 Active format information
status
Active format information present.
0 = no data.
1 = active format information valid.
[3:2] 0 Bar information B[1:0].
00 = no bar information.
01 = horizontal bar information valid.
10 = vertical bar information valid.
11 = horizontal and vertical bar information valid.
[1:0] 0 Scan information S[1:0].
00 = no information.
01 = overscanned (television).
10 = underscanned (computer).
0x82 Read [7:6] 0 Colorimetry C[1:0].
00 = no data.
01 = SMPTE 170M, ITU601.
10 = ITU709.
[5:4] 0 Picture aspect ratio M[1:0].
00 = no data.
01 = 4:3.
10 = 16:9.
[3:0] 0 Active format aspect ratio R[3:0].
1000 = same as picture aspect ratio.
1001 = 4:3 (center).
1010 = 16:9 (center).
1011 = 14:9 (center).
0x83 Read [1:0] 0 Nonuniform picture scaling 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.
0x84 Read [6:0] 0 Video identification code VIC[6:0] video identification code—refer to CEA EDID short
video descriptors.
0x85 Read [3:0] 0 Pixel repeat PR[3:0] specifies how many times a pixel has been
repeated.
0000 = no repetition (pixel sent once).
0001 = pixel sent twice (repeated once).
0010 = pixel sent three times.
1001 = pixel sent 10 times.
0xA to 0xF reserved.
0x86 Read [7:0] 0 Active line start LSB 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.
0x87 Read [6:0] 0 New data flags New data flags. These eight bits are updated if any specific
data changes. Normal (no NDFs) is 0x00. When any NDF
register is read, all bits reset to 0x00. All NDF registers
contain the same data.
Bit Data Packet Changed
0 AVI infoframe.
1 Audio infoframe.
2 SPD infoframe.
3 MPEG source infoframe.
4 ACP packets.
5 ISRC1 packets.
6 ISRC2 packets.