Figure 226. Pcm Standard Waveforms (16-Bit); Figure 227. Pcm Standard Waveforms (16-Bit Extended To 32-Bit Packet Frame) - ST STM32F102 Series Reference Manual

Hide thumbs Also See for STM32F102 Series:

Table of Contents

PCM standard

For the PCM standard, there is no need to use channel-side information. The two PCM

modes (short and long frame) are available and configurable using the PCMSYNC bit in

SPI_I2SCFGR.

Figure 226. PCM standard waveforms (16-bit)

For long frame synchronization, the WS signal assertion time is fixed 13 bits in master

For short frame synchronization, the WS synchronization signal is only one cycle long.

For both modes (master and slave) and for both synchronizations (short and long), the

number of bits between two consecutive pieces of data (and so two synchronization signals)

needs to be specified (DATLEN and CHLEN bits in the SPI_I2SCFGR register) even in slave

up to 13-bit

up to 13-bit

Serial peripheral interface (SPI)

Do you have a question about the STM32F102 Series and is the answer not in the manual?

Stm32f101 series Stm32f103 series