ST STM32G473 User Manual

RM0440 Rev 4 1811/2126
RM0440 Serial audio interface (SAI)
1858
Figure 619. SAI_ADR format in TDM, 16-bit slot width
• Using a 8-bit slot width (DS = 0b010 and SLOTSZ = 0). Refer to Figure 620.
For an 8 microphone configuration, 8 consecutive words read from the SAI_ADR
register contain a byte of data from each microphone. Note that the 8-bit data of
SAI_ADR are right aligned.
For 4 or 2 microphone configuration, the SAI behavior is similar to 8 microphone
configurations. Up to 4 words of 8 bits are required to acquire a byte from 4
microphones and 2 words from 2 microphones.
MSv35471V1
b31 b0
M4L-1 M4L-2 M4L-3 M4L-4 M4L-5 M4L-6 M4L-7 M4L-8
M4R-1 M4R-2 M4R-3 M4R-4 M4R-5 M4R-6 M4R-7 M4R-8
LSBFIRST = 0
word 4n
word 4n+3
8 Microphones configuration
b31 b0
LSBFIRST = 0
4 Microphones configuration
b31 b0
LSBFIRST = 0
2 Microphones configuration
M1L-1 M1L-2 M1L-3 M1L-4
M1R-1 M1R-2 M1R-3 M1R-4
M1L-5 M1L-6 M1L-7 M1L-8
M1R-5 M1R-6 M1R-7 M1R-8
zeros
M2L-1 M2L-2 M2L-3 M2L-4 M2L-5 M2L-6 M2L-7 M2L-8
M2R-1 M2R-2 M2R-3 M2R-4 M2R-5 M2R-6 M2R-7 M2R-8
zeros
zeros
...
word 4n+1
word 2n
M1L-1 M1L-2 M1L-3 M1L-4
M1R-1 M1R-2 M1R-3 M1R-4
M1L-5 M1L-6 M1L-7 M1L-8
M1R-5 M1R-6 M1R-7 M1R-8
zeros
M2L-1 M2L-2 M2L-3 M2L-4 M2L-5 M2L-6 M2L-7 M2L-8
M2R-1 M2R-2 M2R-3 M2R-4 M2R-5 M2R-6 M2R-7 M2R-8
zeros
word 2n+1
word 2n
M1L-1 M1L-2 M1L-3 M1L-4
M1R-1 M1R-2 M1R-3 M1R-4
M1L-5 M1L-6 M1L-7 M1L-8
M1R-5 M1R-6 M1R-7 M1R-8
zeros
b16 b15

ST STM32G473 Specifications

General

Brand	ST
Model	STM32G473
Category	Microcontrollers
Language	English