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參數資料
型號: W83971D
廠商: WINBOND ELECTRONICS CORP
元件分類: 消費家電
英文描述: AC97 AUDIO CODEC
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: LQFP-48
文件頁數: 37/58頁
文件大小: 494K
代理商: W83971D
Preliminary W83971D
Publication Release Date: July 1999
- 35 - Revision A1
10.1 Power Down / Power Up
Normal
ADC’s off
PR0
Analog off
PR2 / PR3
Digital I/F
off
PR4
Shut off
DAC’s off
PR1
Default
PR0=0
&
ADC=1
PR1=0
&
DAC=1
PR2=0
&
ANL=1
Warm Reset
Cold Reset
Ready = 1
PR0=1
PR1=1
PR2=1
PR4=1
Figure 10.1: Power down/Power up Procedure
Note: In the example above, the Analog Mixer has been disabled, but the Vref is still on.
Complete Power Down of the AC'97 device is achieved by sequential writes to the Power Down and
Status Control Register (Index 26h):
Normal Operation:
ADC
s and Input Mux:
DAC
s:
Analog Mixer:
Vrefout:
AC-Link:
Internal Clocks:
PR<5:0> = 0
PR0 = 1 (write)
PR1 = 1 (write)
PR2 = 1 (write)
PR3 = 1 (write)
PR4 = 1 (write)
PR5 = 1 (write)
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相關代理商/技術參數
參數描述
W83977A 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83977AF 制造商:WINBOND 制造商全稱:Winbond 功能描述:PLUG & PLAY 1.0A COMPLIANT
W83977AF-A 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83977AF-P 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83977AG-A 功能描述:IC I/O CONTROLLER 128-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA,便攜式音頻/視頻,智能電話 接口:I²C,2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤(4x4) 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2