参数资料
型号: STAC9221X3TAEYYX
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 编解码器
英文描述: 8-CHANNEL HIGH DEFINITION AUDIO CODEC
中文描述: PCM CODEC, PQFP48
封装: LEAD FREE, LQFP-48
文件页数: 148/172页
文件大小: 1129K
代理商: STAC9221X3TAEYYX
STAC9220/9221/9223
8-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
IDT
148
STAC9220/9221/9223
V 0.96 102706
8-CHANNEL HIGH DEFINITION AUDIO CODEC
6.24.4.
PCBEEP Gen
6.25. CD Node (NID = 0x15)
6.25.1.
CD WCap
Table 324. PCBEEP Gen Command Verb Format
Verb ID
Payload
Response
Get
F0A
00
See bitfield table
Set1
70A
See bits [7:0] of bitfield table
0000_0000h
Table 325. PCBEEP Gen Command Response Format
Bit
Bitfield Name
RW
Reset
Description
[31:8]
Rsvd
R
0x0
Reserved
[7:0]
Divider
RW
0x0
Enable internal PC-Beep generation.
Divider = 00h - disables internal PC Beep generation and enables
normal operation of the CODEC.
When the Divider is not 00h - generates the beep tone on all Pin
Complexes that are currently configured as outputs.
The HD Audio spec states that the beep tone frequency:
F = (48 KHz HD Audio SYNC rate) / (4*Divider)
producing tones from 47 Hz to 12 KHz (logarithmic scale).
This part generates tones with frequency:
F = 48000 * (257 - Divider) / 1024
yielding a linear range from 12 KHz to 93.75 Hz in steps of
46.875 Hz.
If JackSenseVSR[Rate2x], then the beep tones generated have
frequency:
F = 48000 * (513 - Divider) / 1024
yielding a range of 24 KHz to 12093.75 Hz in steps of 46.875 Hz.
Table 326. CD WCap Command Verb Format
Verb ID
Payload
Response
Get
F00
09
See bitfield table
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