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NRF52811-QCAA-R7 Datasheet(PDF) 136 Page - Nordic Semiconductor |
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NRF52811-QCAA-R7 Datasheet(HTML) 136 Page - Nordic Semiconductor |
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136 / 444 page  Peripherals 6.10.7.9 ENABLE Address offset: 0x500 PDM module enable register Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ID A Reset 0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ID Access Field Value ID Value Description A RW ENABLE Enable or disable PDM module Disabled 0 Disable Enabled 1 Enable 6.10.7.10 PDMCLKCTRL Address offset: 0x504 PDM clock generator control Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ID A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A Reset 0x08400000 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ID Access Field Value ID Value Description A RW FREQ PDM_CLK frequency 1000K 0x08000000 PDM_CLK = 32 MHz / 32 = 1.000 MHz Default 0x08400000 PDM_CLK = 32 MHz / 31 = 1.032 MHz 1067K 0x08800000 PDM_CLK = 32 MHz / 30 = 1.067 MHz 6.10.7.11 MODE Address offset: 0x508 Defines the routing of the connected PDM microphones' signals Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ID B A Reset 0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ID Access Field Value ID Value Description A RW OPERATION Mono or stereo operation Stereo 0 Sample and store one pair (Left + Right) of 16bit samples per RAM word R=[31:16]; L=[15:0] Mono 1 Sample and store two successive Left samples (16 bit each) per RAM word L1=[31:16]; L0=[15:0] B RW EDGE Defines on which PDM_CLK edge Left (or mono) is sampled LeftFalling 0 Left (or mono) is sampled on falling edge of PDM_CLK LeftRising 1 Left (or mono) is sampled on rising edge of PDM_CLK 6.10.7.12 GAINL Address offset: 0x518 Left output gain adjustment 4454_140 v1.0 136 |
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