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STAC9752 Datasheet(PDF) 71 Page - Integrated Device Technology |
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STAC9752 Datasheet(HTML) 71 Page - Integrated Device Technology |
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71 / 95 page  STAC9752/9753 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING IDT™ 71 STAC9752/9753 REV 3.3 1206 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING 8.4.4. Function Select (66h Page 01h) Register 24h must be set to Page 01h to access this register. Default: 0000h Note: This register does not reset on RESET#. D15 D14 D13 D12 D11 D10 D9 D8 RESERVED D7 D6 D5 D4 D3 D2 D1 D0 RESERVED FC3 FC2 FC1 FC0 T/R Bit(s) Reset Value Name Description 15-5 Reserved Reserved 4-1 00h FC3:FC0 Function Code bits: 00h - Line Out (Master Out) 01h - Head Phone Out (AUX Out) Setting the T/R bit to 0 = Left,1 = Right 02h - DAC 3 (C/LFE) - Not Supported 03h - SPDIF out 04h - Phone In 05h - Mic1 (Microphone select = 0) 06h - Mic2 (Microphone select = 1) 07h - Line In 08h - CD In 09h - Video In 0Ah - Aux In 0Bh - Mono Out 0C- 0Fh - Reserved For supported Jack and Microphone Sense Functions, see Table21: page71. The Function Code Bits are used to read Register 68h (Page 01h) and Register 6Ah (Page 01h). Mono I/O should report relevant sense and function information on Tip, and report Not-Supported on Ring. Setting the function code to unsupported values will return a 0 when accessing the Information Valid Bit in Page 01, Register 68h, bit 5. 0 0 T/R Tip or Ring Selection Bit.This bit sets which jack conductor the sense value is measured from. Software will program the corresponding the Ring/Tip selector bit together with the I/O number in bits FC[3:0]. 0 - Tip (Left) 1 - Ring (Right) Table 21. Supported Jack and Microphone Sense Functions Function Code I/O Sense Capability 00h Line_Out Jack Sense 01h Headphone_Out Jack Sense 05h Mic1 Microphone Sense 06h Mic2 Microphone Sense |
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