NRF9160-SICA-R7 datasheet(125/400 Pages) NORDIC

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Peripherals

Left sample 3

x.PTR

x.PTR + 4

x.PTR + n - 4

Left sample 2

Left sample 1

Left sample 0

Left sample 7

Left sample 6

Left sample 5

Left sample 4

Left sample

n-1

Left sample

n-2

Left sample

n-3

Left sample

n-4

24 23

8 7

Figure 29: Memory mapping for 8 bit mono. CONFIG.SWIDTH = 8Bit, CONFIG.CHANNELS = Left.

Right sample 0

Left sample 0

Right sample 1

Left sample 1

Right sample n - 1

Left sample n - 1

x.PTR

x.PTR + 4

x.PTR + (n*4) - 4

Figure 30: Memory mapping for 16 bit stereo. CONFIG.SWIDTH = 16Bit, CONFIG.CHANNELS = Stereo.

Left sample 1

Left sample 0

Left sample 3

Left sample 2

Left sample n - 1

Left sample n - 2

x.PTR

x.PTR + 4

x.PTR + (n*2) - 4

Figure 31: Memory mapping for 16 bit mono, left channel

only. CONFIG.SWIDTH = 16Bit, CONFIG.CHANNELS = Left.

Left sample 0

x.PTR

x.PTR + 4

x.PTR + (n*8) - 8

Right sample 0

Sign ext.

Left sample n - 1

Sign ext.

Right sample n - 1

Sign ext.

x.PTR + (n*8) - 4

Figure 32: Memory mapping for 24 bit stereo. CONFIG.SWIDTH = 24Bit, CONFIG.CHANNELS = Stereo.

4418_1315 v2.0

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NRF9160-SICA-R7 Datasheet(PDF) 125 Page - Nordic Semiconductor

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