參數(shù)資料
型號(hào): AD9398/PCBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 26/44頁(yè)
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD9398
標(biāo)準(zhǔn)包裝: 1
主要目的: 視頻,視頻處理
已用 IC / 零件: AD9398
已供物品:
相關(guān)產(chǎn)品: AD9398KSTZ-100-ND - IC INTERFACE 100MHZ HDMI 100LQFP
AD9398KSTZ-150-ND - IC INTERFACE 150MHZ HDMI 100LQFP
AD9398
Rev. 0 | Page 32 of 44
0x87—Bit[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
upon reading any one of them.
Table 29.
NDF Bit Number
Changes Occurred
0
AVI infoframe
1
Audio infoframe
2
SPD infoframe
3
MPEG source infoframe
4
ACP packets
5
ISRC1 packets
6
ISRC2 packets
0x88—Bits[7:0] Active Line Start MSB
See Register 0x86.
0x89—Bits[7:0] Active Line End LSB
Combined with the MSB in Register 0x8A 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.
0x8A—Bits[7:0] Active Line End MSB
See Register 0x89.
0x8B—Bits[7:0] Active Pixel Start LSB
Combined with the MSB in Register 0x8C, 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.
0x8C—Bits[7:0] Active Pixel Start MSB
See Register 0x8B.
0x8D—Bits[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—Bits[7:0] Active Pixel End MSB
See Register 0x8D.
0x8F—Bits[6:0] NDF
See Register 0x87.
0x90—Bits[7:0] Audio Infoframe Version
0x91—Bits[7:4] Audio Coding Type
These bits identify the audio coding so that the receiver may
process audio properly.
Table 30.
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—Bits[2:0] Audio Channel Count
These bits specify how many audio channels are being sent—
2 channels to 8 channels.
Table 31.
CC [2:0]
Channel Count
000
Refer to stream header
001
2
010
3
011
4
100
5
101
6
110
7
111
8
0x92—Bits[4:2] Sampling Frequency
0x92—Bits[1:0] Ample Size
0x93—Bits[7:0] Max Bit Rate
For compressed audio only, when this value is multiplied by
8 kHz, it represents the maximum bit rate. A value of 0x08 in
this field yields a maximum bit rate of (8 kHz × 8 kHz = 64 kHz).
0x94—Bits[7:0] Speaker Mapping
These bits define the suggested placement of speakers.
Table 32.
Abbreviation
Speaker Placement
FL
Front left
FC
Front center
FR
Front right
FCL
Front center left
FCR
Front center right
RL
Rear left
RC
Rear center
RR
Rear right
RCL
Rear center left
RCR
Rear center right
LFE
Low frequency effect
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