AD9880SLASHPCB datasheet(52/64 Pages) AD

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AD9880

Rev. 0 | Page 52 of 64

0x8D

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.

0x8E

7-0

Active Pixel End MSB

See Register 0x8D.

0x8F

6-0

NDF

See Register 0x87.

0x90

7-0

Audio Infoframe Version

0x91

7-4

Audio Coding Type

These bits identify the audio coding so that the

receiver may process audio properly.

Table 88.

CT [3:0]

Audio Coding

0x0

Refer to stream header

0x1

IEC60958 PCM

0x2

AC-3

0x3

MPEG1 (Layers 1 and 2)

0x4

MP3 (MPEG1 Layer 3)

0x5

MPEG2 (multichannel)

0x6

AAC

0x7

DTS

0x8

ATRAC

0x91

2-0

Audio Channel Count

These bits specify how many audio channels are being

sent—2 channels to 8 channels.

Table 89.

CC [2:0]

Channel Count

000

Refer to stream header

001

010

011

100

101

110

111

0x92

4-2

Sampling Frequency

0x92

1-0

Ample Size

0x93

7-0

Max Bit Rate

For compressed audio only when this value is

multiplied by 8 kHz represents the maximum bit rate.

A value of 0x08 in this field would yield a maximum

bit rate of (8 kHz × 8 kHz = 64 kHz).

0x94

7-0

Speaker Mapping

These bits define the mapping (suggested placement)

of speakers.

Table 90.

Abbreviation

Speaker Placement

Front left

Front center

Front right

FCL

Front center left

FCR

Front center right

Rear left

Rear center

Rear right

RCL

Rear center left

RCR

Rear center right

LFE

Low frequency effect

AD9880/PCB Datasheet(PDF) 52 Page - Analog Devices

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