alc260d-ve-lf Realtek Semiconductor Corporation, alc260d-ve-lf Datasheet - Page 15
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alc260d-ve-lf
Manufacturer Part Number
alc260d-ve-lf
Description
2 Channel High Definition Audio Codec
Manufacturer
Realtek Semiconductor Corporation
Datasheet
1.ALC260D-VE-LF.pdf
(79 pages)
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ALC260(D)
Datasheet
7.
High Definition Audio Link Protocol
7.1.
Link Signals
The High Definition Audio (HDA) Link is the digital serial interface that connects the HDA codecs to the
HDA Controller. The HDA link protocol is controller synchronous, based on a 24.0MHz BIT-CLK sent by
the HDA controller. The input and output streams, including command and PCM data, are isochronous with
a 48kHz frame rate. Figure 4 shows the basic concept of the HDA link protocol.
T
= 20.833 µs (48KHz)
Previous Frame
frame_sync
Next Frame
BCLK
Frame SYNC= 8 BCLK
Stream 'A' Tag
Stream 'B' Tag
(Here 'A' = 5)
(Here 'B' = 6)
SYNC
SDO
Command Stream
Stream 'B' Data
Stream 'A' Data
(40-bit data)
Stream
SDI
Stream 'C' Data
Response Stream
'C' Tag
(36-bit data)
(n bytes + 10-bit data)
RST#
Figure 4. HDA Link Protocol
2 Channel High Definition Audio Codec
8
Track ID: JATR-1076-21 Rev. 1.4
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