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 | |||
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| 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 | R/W | Field | Value ID | Value | Description | ||||||||||||||||||||||||||||||
| A |
RW |
OPERATION |
Mono or stereo operation |
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|
Stereo |
0 |
Sample and store one pair (left + right) of 16-bit samples per RAM word R=[31:16]; L=[15:0] |
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|
Mono |
1 |
Sample and store two successive left samples (16 bits each) per RAM word L1=[31:16]; L0=[15:0] |
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| B |
RW |
EDGE |
Defines on which PDM_CLK edge left (or mono) is sampled |
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LeftFalling |
0 |
Left (or mono) is sampled on falling edge of PDM_CLK |
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|
LeftRising |
1 |
Left (or mono) is sampled on rising edge of PDM_CLK |
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