AD9393SLASHPCBZ datasheet(27/40 Pages) AD

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AD9393

Rev. 0 | Page 27 of 40

0x5B—Bit[3], HDMI Mode

0 = DVI, 1 = HDMI.

0x7B—Bits[7:0], CTS[19:12], 0x7C—Bits[7:0] CTS[11:4],

and 0x7D—Bits[7:4], CTS[3:0]

These bits are the most significant eight bits of a 20-bit word used

with the 20-bit N term in the regeneration of the audio clock.

0x7D—Bits[3:0], N[19:16], 0x7E—Bits[7:0], N[15:8], and

0x7F—Btis[7:0], N[7:0]

These are the most significant four bits of a 20-bit word used

with the 20-bit CTS term to regenerate the audio clock.

0x81—Bits[6:5], Y[1:0]

This register indicates whether data is RGB, 4:4:4, or 4:2:2.

Table 19.

Video Data

RGB

YCrCb 4:2:2

YCrCb 4:4:4

0x81—Bit[4], Active Format Information Status

0 = no data. 1 = active format information valid.

0x84—Bits[6:0], Video Identification Code

See the CEA EDID short video descriptors in EIA/CEA-861B.

0x85—Bits[3:0], Pixel Repeat

This value indicates how many times the pixel was repeated,

for example, 0x0 = no repeats, sent once, 0x8 = eight repeats,

sent nine times.

0x86—Bits[7:0], Active Line Start LSB and 0x88—

Bits[7:0] Active Line Start MSB

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

when any one of them is read. See Table 20.

Table 20.

NDF Bit Number

Changes Occurred

AVI infoframe

Audio infoframe

SPD infoframe

MPEG source infoframe

ACP packets

ISRC1 packets

ISRC2 packets

0x89—Bits[7:0], Active Line End LSB and 0x8A—

Bits[7:0], Active Line End MSB

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.

0x8B—Bits[7:0], Active Pixel Start LSB and 0x8C—

Bits[7:0], Active Pixel Start MSB

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.

0x8D—Bits[7:0], Active Pixel End LSB and 0x8E—

Bits[7:0], Active Pixel End MSB

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.

0x8F—Bits[6:0], New Data Flags

See the 0x87—Bits[6:0], New Data Flags (NDF) section.

0x91—Bits[7:4], Audio Coding Type

These bits identify the audio coding so that the receiver may

process audio properly. See Table 21.

Table 21.

CT[3:0]

Audio Coding

0x0

Refer to stream header

0x1

IEC60958 PCM

0x2

AC3

0x3

MPEG1 (Layer 1 and Layer 2)

0x4

MP3 (MPEG1 Layer 3)

0x5

MPEG2 (multichannel)

0x6

AAC

0x7

DTS

0x8

ATRAC

0x91—Bits[2:0], Audio Channel Count

These bits specify how many audio channels (2 channels to

8 channels) are being sent.

Table 22.

CC[2:0]

Channel Count

000

Refer to stream header

001

010

011

100

101

110

111

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