PXS30 datasheet(13/139 Pages) FREESCALE

13 / 139 page

Introduction

PXS30 Microcontroller Data Sheet, Rev. 1

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

1.5.16

FlexCAN

•

Thirty-two message buffers each

•

Full implementation of the CAN protocol specification, Version 2.0B

•

Programmable acceptance filters

•

Individual Rx filtering per message buffer

•

Short latency time for high priority transmit messages

•

Arbitration scheme according to message ID or message buffer number

•

Listen-only mode capabilities

•

Programmable clock source: system clock or oscillator clock

•

Reception queue possible by setting more than one Rx message buffer with the same ID

•

Backwards compatible with previous FlexCAN modules

•

Safety CAN features on 1 CAN module as implemented on MPC5604P

1.5.17

Dual-channel FlexRay controller

•

Full implementation of FlexRay Protocol Specification 2.1

•

Sixty-four configurable message buffers can be handled

•

Message buffers configurable as Tx, Rx, or RxFIFO

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Message buffer size configurable

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Message filtering for all message buffers based on FrameID, cycle count, and message ID

•

Programmable acceptance filters for RxFIFO message buffers

•

Dual channel, each at up to 10 Mbit/s data rate

1.5.18

Periodic Interrupt Timer (PIT)

The PIT module implements the features below:

•

Four general-purpose interrupt timers

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32-bit counter resolution

•

Clocked by system clock frequency

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32-bit counter for real time interrupt, clocked from main external oscillator

•

Can be used for software tick or DMA trigger operation

1.5.19

System Timer Module (STM)

The STM implements the features below:

•

Duplicated periphery to guarantee that safety targets (SIL3) are achieved

•

Up-counter with four output compare registers

•

OS task protection and hardware tick implementation as per current state-of-the-art AUTOSAR

requirement

PXS30 Datasheet(PDF) 13 Page - Freescale Semiconductor, Inc

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