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WM9715L Datasheet(PDF) 69 Page - Wolfson Microelectronics plc |
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WM9715L Datasheet(HTML) 69 Page - Wolfson Microelectronics plc |
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69 / 77 page  Production Data WM9715L w PD Rev 4.0 December 2007 69 Register 56h (together with register 4Ch) controls the outputs ADCIRQ, PENDOWN, GENIRQ and SPDIF_OUT. REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 5 GE5 1 (off) ‘0’ enables the SPDIF_OUT pin (note that GC5 in register 4Ch must also be set to 0, and SEN in register 2Ah to 1) 4 GE4 1 (off) ‘0’ enables the ADCIRQ pin (note that GC4 in register 4Ch must also be set to 0). 3 GE3 1 (off) ‘0’ enables the PENDOWN pin (note that GC3 in register 4Ch must also be set to 0). 56h 2 GE2 1 (off) ‘0’ enables the GENIRQ pin (note that bit GC2 in register 4Ch must also be set to 0). Interrupt Control Register 58h controls several additional functions. REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 15:13 COMP2DEL 000 (no delay) Selects Comparator 2 delay Battery Alarm 10 SVD 0 (enabled) Disables VREF for lowest possible power consumption Power Management 3:2 DIE REV Indicates device revision. 00=Rev.A, 01=Rev.B, 10=Rev.C N/A 1 WAKEEN 0 (no wake-up) Enables GENIRQ interrupt wake-up 58h 0 IRQ INV 0 (not inverted) Inverts the GENIRQ signal (pin 45) Interrupt Control Register 5Ch controls several additional functions. REG ADDR BIT LABEL DEFAULT DESCRIPTION REFER TO 15 AMUTE 0 Read-only bit to indicate DAC auto-muting Audio DACs, Stereo DACs 14 C1REF 0 (AVDD/2) Selects Comparator 1 Reference Voltage 13:12 C1SRC 00 (OFF) Selects Comparator 1 Signal Source 11 C2REF 0 (AVDD/2) Selects Comparator 1 Reference Voltage 10:9 C2SRC 00 (OFF) Selects Comparator 1 Signal Source Battery Alarm 8 DS 0 Selects differential microphone input pins. 0=MIC1 and MIC2, 1=LINEL and LINER Analogue Inputs, Microphone Input 7 AMEN 0 (OFF) Enables DAC Auto-Mute 6:5 VBIAS 00 Selects analogue bias for lowest power, depending on AVDD supply. 0X=3.3V, 10=2.5V, 11=1.8V Power Management 4 ADCO 0 Selects source of SPDIF data. 0=from SDATAOUT, 1= from audio ADC Digital Audio (SPDIF) Output 3 HPF 0 Disables ADC high-pass filter Audio ADC 2 ENT 0 Enables thermal sensor Analogue Audio Outputs, Thermal Sensor 5Ch 1:0 ASS 00 Selects time slots for stereo ADC data. 00=slots 3 and 4, 01=7/8, 10=6/9, 11=10/11 Audio ADC, ADC Slot Mapping |
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