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| YMF743 Datasheet, PDF (11/24 Pages) YAMAHA CORPORATION – AC’97 Revsion2.1 Audio CODEC with Digital Audio I/F | |||
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YMF743
26h : Power Down (Read/Write, Default: 000xh)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
EAPD - PR5 PR4 PR3 PR2 PR1 PR0 -
-
-
- REF ANL DAC ADC
EAPD............This bit controls the state of EAPD (No.47) pin.
â0â : Low
â1â : High
PR5 ...............Keep this bit to â0â.
PR4 ...............This bit controls the power state of the AC-Link.
â0â : Normal
â1â : Powar down
PR3 ...............This bit controls the power state of the analog mixer.
â0â : Normal
â1â : Powar down (Vref off)
PR2 ...............This bit controls the power state of the analog mixer.
â0â : Normal
â1â : Powar down (Vref still on)
PR1 ...............This bit controls the power state of the D/A converter.
â0â : Normal
â1â : Powar down
PR0 ...............This bit controls the power state of the A/D converter.
â0â : Normal
â1â : Powar down
REF...............This bit is Read Only, and indicates the state of Vref.
â0â : Ground level
â1â : 2.5V
ANL..............This bit is Read Only, and indicates the state of the analog mixer.
â0â : The analog mixer does not work.
â1â : The analog mixer works normally.
DAC..............This bit is Read Only, and indicates the state of the D/A converter.
â0â : The D/A converter does not work.
â1â : The D/A converter works normally.
ADC..............This bit is Read Only, and indicates the state of the A/D converter.
â0â : The A/D converter does not work.
â1â : The A/D converter works normally.
Note) When YMF743 is the Secondary CODEC, PR4 is not cleared by Warm Reset.
11
December 18, 2000
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