ST STM32F412 User Manual

RM0402 Rev 6 845/1163
RM0402 Serial peripheral interface/ inter-IC sound (SPI/I2S)
862
Table 157. Audio-frequency precision using standard 8 MHz HSE
(1)
1. This table gives only example values for different clock configurations. Other configurations allowing
optimum clock precision are possible.
SYSCLK
(MHz)
Data
length
I2SDIV I2SODD MCLK
Target f
S
(Hz)
Real f
S
(KHz) Error
48 16 8 0 No 96000 93750 2.3438%
48 32 4 0 No 96000 93750 2.3438%
48 16 15 1 No 48000 48387.0968 0.8065%
48 32 8 0 No 48000 46875 2.3438%
48 16 17 0 No 44100 44117.647 0.0400%
48 32 8 1 No 44100 44117.647 0.0400%
48 16 23 1 No 32000 31914.8936 0.2660%
48 32 11 1 No 32000 32608.696 1.9022%
48 16 34 0 No 22050 22058.8235 0.0400%
48 32 17 0 No 22050 22058.8235 0.0400%
48 16 47 0 No 16000 15957.4468 0.2660%
48 32 23 1 No 16000 15957.447 0.2660%
48 16 68 0 No 11025 11029.4118 0.0400%
48 32 34 0 No 11025 11029.412 0.0400%
48 16 94 0 No 8000 7978.7234 0.2660%
48 32 47 0 No 8000 7978.7234 0.2660%
48 16 2 0 Yes 48000 46875 2.3430%
48 32 2 0 Yes 48000 46875 2.3430%
48 16 2 0 Yes 44100 46875 6.2925%
48 32 2 0 Yes 44100 46875 6.2925%
48 16 3 0 Yes 32000 31250 2.3438%
48 32 3 0 Yes 32000 31250 2.3438%
48 16 4 1 Yes 22050 20833.333 5.5178%
48 32 4 1 Yes 22050 20833.333 5.5178%
48 16 6 0 Yes 16000 15625 2.3438%
48 32 6 0 Yes 16000 15625 2.3438%
48 16 8 1 Yes 11025 11029.4118 0.0400%
48 32 8 1 Yes 11025 11029.4118 0.0400%
48 16 11 1 Yes 8000 8152.17391 1.9022%
48 32 11 1 Yes 8000 8152.17391 1.9022%

ST STM32F412 Specifications

General

Brand	ST
Model	STM32F412
Category	Microcontrollers
Language	English