Datasheet

Functional overview STM32L452xx
52/210 DocID029968 Rev 3
3.30 Controller area network (CAN)
The CAN is compliant with specifications 2.0A and B (active) with a bit rate up to 1 Mbit/s. It
can receive and transmit standard frames with 11-bit identifiers as well as extended frames
with 29-bit identifiers. It has three transmit mailboxes, two receive FIFOs with 3 stages and
14 scalable filter banks.
The CAN peripheral supports:
• Supports CAN protocol version 2.0 A, B Active
• Bit rates up to 1 Mbit/s
• Transmission
– Three transmit mailboxes
– Configurable transmit priority
• Reception
– Two receive FIFOs with three stages
– 14 Scalable filter banks
– Identifier list feature
– Configurable FIFO overrun
• Time-triggered communication option
– Disable automatic retransmission mode
– 16-bit free running timer
– Time Stamp sent in last two data bytes
• Management
– Maskable interrupts
– Software-efficient mailbox mapping at a unique address space
3.31 Secure digital input/output and MultiMediaCards Interface
(SDMMC)
The card host interface (SDMMC) provides an interface between the APB peripheral bus
and MultiMediaCards (MMCs), SD memory cards and SDIO cards.
Table 14. SAI implementation
SAI features Support
(1)
1. X: supported
I2S, LSB or MSB-justified, PCM/DSP, TDM, AC’97 X
Mute mode X
Stereo/Mono audio frame capability. X
16 slots X
Data size configurable: 8-, 10-, 16-, 20-, 24-, 32-bit X
FIFO Size X (8 Word)
SPDIF X
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