參數(shù)資料
型號: GS1582-IBE3
廠商: Gennum Corporation
英文描述: IC,MOT,MC145026P, DIP-16, ENCODER 9 LINE SIMPLEX
中文描述: 多速率的電纜驅(qū)動器,音頻多路復(fù)用器和ClockCleaner⑩串行
文件頁數(shù): 49/114頁
文件大小: 1224K
代理商: GS1582-IBE3
GS1582 Data Sheet
40117 - 1 November 2007
49 of 114
On lines where the SMPTE 352M packet is already present, the audio core places
new and existing audio data packets contiguously after the 352M packets. For HD
formats, the 352M packets are embedded in the luma channel of the video data
stream; therefore, no audio data packets will be placed after the 352M packets.
Figure 4-17: Audio Group Replacement Example (HD Formats)
Audio group replacement mode is selected by setting the AGR bit of the host
interface HIGH. By default, the GS1582 replaces two audio groups with their DID
set in IDA[1:0] and IDB[1:0]. To replace only one audio group, with group DID set
in IDA[1:0], set the ONE_AGR bit in the host interface HIGH. The audio control
packets, if present, will not be replaced unless the CTR_AGR host interface bit is
set HIGH. The audio control packet information will be replaced with data
programmed in the associated registers in the host interface. See
Audio Control
Packets on page 45
.
Refer to
Section 4.13.3
for HD and SD multiplexer core status and configuration
registers.
Blank (200
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)
Video Signal Input to Audio Core (with existing Audio Data Packets)
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)
E
Video Signal after deleting Audio Groups 1 & 2 (ONE_AGR = 0)
S
A
G
A
G
L
C
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)
E
Video Signal Output after replacement of Audio Groups 1 & 2
S
A
G
(
A
G
(
A
G
(
A
G
(
L
C
Blank (200
h
)
E
S
A
G
A
G
A
G
A
G
L
C
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Video Signal after Audio Groups 3 & 4 stored in RAM
S
L
C
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