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WM8912 Datasheet(PDF) 97 Page - Wolfson Microelectronics plc |
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WM8912 Datasheet(HTML) 97 Page - Wolfson Microelectronics plc |
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97 / 128 page  Production Data WM8912 w PD, Rev 4.0, September 2010 97 REGISTER BITS BY ADDRESS REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R0 (00h) SW Reset and ID 15:0 SW_RST_DEV _ID1 [15:0] 1000_1001 _0000_010 0 Writing to this register resets all registers to their default state. Reading from this register will indicate Device ID 8904h. Register 00h SW Reset and ID REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R4 (04h) Bias Control 0 0 BIAS_ENA 0 Enables the Normal bias current generator (for all analogue functions) 0 = Disabled 1 = Enabled Register 04h Bias Control 0 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R5 (05h) VMID Control 0 2:1 VMID_RES [1:0] 00 VMID Divider Enable and Select 00 = VMID disabled (for OFF mode) 01 = 2 x 50k divider (for normal operation) 10 = 2 x 250k divider (for low power standby) 11 = 2 x 5k divider (for fast start-up) 0 VMID_ENA 0 Enable VMID master bias current source 0 = Disabled 1 = Enabled Register 05h VMID Control 0 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R14 (0Eh) Power Managemen t 2 1 HPL_PGA_EN A 0 Left Headphone Output Enable 0 = disabled 1 = enabled 0 HPR_PGA_EN A 0 Right Headphone Output Enable 0 = disabled 1 = enabled Register 0Eh Power Management 2 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R15 (0Fh) Power Managemen t 3 1 LINEOUTL_PG A_ENA 0 Left Line Output Enable 0 = disabled 1 = enabled 0 LINEOUTR_P GA_ENA 0 Right Line Output Enable 0 = disabled 1 = enabled Register 0Fh Power Management 3 |
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