參數(shù)資料
型號(hào): 92HD001
廠商: Integrated Device Technology, Inc.
元件分類: Codec
英文描述: 2-CHANNEL HIGH DEFINITION AUDIO CODEC
中文描述: 2聲道高保真音頻編解碼器
文件頁數(shù): 115/126頁
文件大?。?/td> 1024K
代理商: 92HD001
92HD001/92HD001D
2-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
IDT
2-CHANNEL HIGH DEFINITION AUDIO CODEC
115
92HD001/92HD001D
V 1.0 12/06
IDT CONFIDENTIAL
5.22.4.
PCBeep Gen
Table 274. 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 275. PCBeep Gen Command Response Format
Bit
Bitfield Name
RW
Reset
Description
[31.:8]
Rsvd
R
0x0
Reserved
[7.:0]
Divider
RW
0x00
Enable internal PC-Beep generation.
Divider = 00h disables internal PC Beep
generation and enables normal operation of the
CODEC.
Divider not equal to 00h generates the beep
tone on all Pin Complexes that are currently
configured as outputs.
The Azalia spec states that the beep tone
frequency = (48 KHz Azalia SYNC rate) /
(4*Divider), producing tones from 47 Hz to
12 KHz (logarithmic scale). Instead, this part
generates tones with frequency = 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 = 48000 * (513 -
Divider) / 1024, yielding a range of 24 KHz to
12093.75 Hz in steps of 46.875 Hz.
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