SPC56EL70L3 datasheet(22/128 Pages) STMICROELECTRONICS

22 / 128 page

Introduction

SPC56EL70L3, SPC56EL70L5,PC564L70L3, SPC564L70L5

22/128

DocID023953 Rev 5

The FlexCAN module provides the following features:



Full implementation of the CAN protocol specification, version 2.0B

–

Standard data and remote frames

–

Extended data and remote frames

–

0 to 8 bytes data length

–

Programmable bit rate as fast as 1Mbit/s



32 message buffers of 0 to 8 bytes data length



Each message buffer configurable as receive or transmit buffer, all supporting standard

and extended messages



Programmable loop-back mode supporting self-test operation



3 programmable mask registers



Programmable transmit-first scheme: lowest ID or lowest buffer number



Time stamp based on 16-bit free-running timer



Global network time, synchronized by a specific message



Maskable interrupts



Independent of the transmission medium (an external transceiver is assumed)



High immunity to EMI



Short latency time due to an arbitration scheme for high-priority messages



Transmit features

–

Supports configuration of multiple mailboxes to form message queues of scalable

depth

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Arbitration scheme according to message ID or message buffer number

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Internal arbitration to guarantee no inner or outer priority inversion

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Transmit abort procedure and notification



Receive features

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Individual programmable filters for each mailbox

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8 mailboxes configurable as a 6-entry receive FIFO

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8 programmable acceptance filters for receive FIFO



Programmable clock source

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System clock

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Direct oscillator clock to avoid FMPLL jitter

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