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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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WM9712CLGEFL/V 데이터시트(PDF) 63 Page - Wolfson Microelectronics plc |
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WM9712CLGEFL/V 데이터시트(HTML) 63 Page - Wolfson Microelectronics plc |
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63 / 78 page  Production Data WM9712L w PD, Rev 4.6, November 2011 63 REGISTER BITS BY ADDRESS Register 00h is a read-only register. Writing any value to this register resets all registers to their default, but does not change the contents of reg. 00h. Reading the register reveals information about the CODEC to the driver, as required by the AC’97 Specification, Revision 2.2 REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 00h 14:10 SE [4:0] 11000 Indicates a CODEC from Wolfson Microelectronics Intel’s AC’97 Component Specification, Revision 2.2, page 50 9:6 ID9:6 0101 Indicates 18 bits resolution for ADCs and DACs 5 ID5 1 Indicates that the WM9712L supports bass boost 4 ID4 1 Indicates that the WM9712L has a headphone output 3 ID3 0 Indicates that the WM9712L does not support simulated stereo 2 ID2 1 Indicates that the WM9712L supports bass and treble control 1 ID1 0 Indicates that the WM9712L does not support modem functions 0 ID0 0 Indicates that the WM9712L does not have a dedicated microphone ADC Register 02h controls the output pins LOUT2 and ROUT2. REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 02h 15 MU 1 (mute) Mutes LOUT2 and ROUT2. Analogue Audio Outputs 13:8 LOUT2 VOL 000000 (0dB) LOUT2 volume 7 ZC 0 (OFF) Enables zero-cross detector 6 INV 0 (not inverted) Inverts LOUT2 (for BTL speaker operation) 5:0 ROUT2 VOL 000000 (0dB) ROUT2 volume Register 04h controls the headphone output pins, HPOUTL and HPOUTR. REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 04h 15 MU 1 (mute) Mutes HPOUTL and HPOUTR. Analogue Audio Outputs 13:8 HPOUTL VOL 000000 (0dB) HPOUTL volume 7 ZC 0 (OFF) Enables zero-cross detector 5:0 HPOUTR VOL 000000 (0dB) HPOUTR volume Register 06h controls the analogue output pin MONOOUT. REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 06h 15 MU 1 (mute) Mutes MONOOUT. Analogue Audio Outputs 7 ZC 0 (OFF) Enables zero-cross detector 5:0 MONOOUT VOL 000000 (0dB) MONOOUT volume |
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