AD9889 Analog Devices, AD9889 Datasheet - Page 28

• Manufacturer Part Number: AD9889
• Description: High Performance HDMI/DVI Transmitter
• Manufacturer: Analog Devices

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D a t a S h e e t
AD9889
Hex
Address
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
0x50
0x51
4
U
. c o m
Read/Write or Read
Only
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
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Bits
[5:4]
[3:2]
[1:0]
[7:4]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:5]
[4]
[3:0]
[7:0]
Default
Value
**00****
****00**
******00
0000****
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
000*****
***0****
****0000
00000000
Register Name
Colorimetry
Picture Aspect Ratio
Nonuniform Picture
Scaling
Active Format Aspect
Ratio
Active Line Start LSB
Active Line Start MSB
Active Line End LSB
Active Line End MSB
Active Pixel Start LSB
Active Pixel Start MSB
Active Pixel End LSB
Active Pixel End MSB
audio_IF_CC
audio_IF_DM_INH
Level Shift
Speaker Mapping
Rev. 0 | Page 28 of 48
Description
C[1:0].
00 = no data.
01 = SMPTE 170M, ITU601.
10 = ITU709.
11 = undefined.
Default = 00.
M[1:0].
00 = no data.
01 = 4:3.
10 = 16:9.
11 = undefined.
Default = 00.
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.
Default = 00.
R[3:0].
1000 = same as picture aspect ratio.
1001 = 4:3 (center).
1010 = 16:9 (center).
1011 = 14:9 (center).
Default = 0x0.
This represents the line number at the end of the top
horizontal bar. If 0, there is no horizontal bar.
This represents the line number at the beginning of a
lower horizontal bar. If greater than the number of
active video lines, there is no lower horizontal bar..
This represents the last pixel in a vertical pillar bar at
the left side of the picture. If 0, there is no left bar.
This represents the first horizontal pixel in a vertical
pillar bar at the right side of the picture. If greater
than the maximum number of horizontal pixels, there
is no vertical bar.
Channel count.
000 = refer to stream header.
001 = 2 channels.
010 = 3 channels.
…
111 = 8 channels.
Default = 000.
Down-mix inhibit.
0 = permitted or no information about this.
1 = prohibited.
Default = 0.
LSV[3:0]. Level Shift Values with attenuation
information.
0000 = 0 dB attenuation.
0001 = 1 dB attenuation.
…
1111 = 15 dB attenuation.
Default = 0x0.
CA[7:0]. Speaker mapping or placement for up to
8 channels (see Table 24).
Default = 0x00.
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