STM32L496QGI3STR datasheet(56/263 Pages) STMICROELECTRONICS

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Functional overview

STM32L496xx

56/263

DocID029173 Rev 2

3.34

Single wire protocol master interface (SWPMI)

The Single wire protocol master interface (SWPMI) is the master interface corresponding to

the Contactless Frontend (CLF) defined in the ETSI TS 102 613 technical specification. The

main features are:

•

full-duplex communication mode

•

automatic SWP bus state management (active, suspend, resume)

•

configurable bitrate up to 2 Mbit/s

•

automatic SOF, EOF and CRC handling

SWPMI can be served by the DMA controller.

3.35

Controller area network (CAN)

The two CANs are compliant with the 2.0A and B (active) specifications with a bit rate up to

1Mbit/s. They can receive and transmit standard frames with 11-bit identifiers as well as

extended frames with 29-bit identifiers. Each CAN has three transmit mailboxes, two receive

FIFOS with 3 stages and 28 shared scalable filter banks (all of them can be used even if one

CAN is used). 256 bytes of SRAM are allocated for each CAN.

Table 13. SAI implementation

SAI features(1)

1. X: supported

SAI1

SAI2

I2S, LSB or MSB-justified, PCM/DSP, TDM, AC’97

Mute mode

Stereo/Mono audio frame capability.

16 slots

Data size configurable: 8-, 10-, 16-, 20-, 24-, 32-bit

FIFO Size

X (8 Word)

SPDIF

STM32L496QGI3STR Datasheet(PDF) 56 Page - STMicroelectronics