SPC56AP60X datasheet(19/104 Pages) STMICROELECTRONICS

19 / 104 page

SPC56xP54x, SPC56xP60x

Introduction

Doc ID 18340 Rev 3

19/104

The default booting scheme is the one which uses the internal flash memory (an internal

pull-down is used to select this mode). The alternate option allows the user to boot via

FlexCAN or LINFlex (using the boot assist module software).

A censorship scheme is provided to protect the contents of the flash memory and offer

increased security for the entire device.

A password mechanism is designed to grant the legitimate user access to the non-volatile

memory.

Boot assist module (BAM)

The BAM is a block of read-only one-time programmed memory and is identical for all

SPC56xP54/60 devices that are based on the e200z0h core. The BAM program is executed

every time the device is powered on if the alternate boot mode has been selected by the

user.

The BAM provides the following features:

●

Serial bootloading via FlexCAN or LINFlex.

●

BAM can accept a password via the used serial communication channel to grant the

legitimate user access to the non-volatile memory.

1.5.17

Error correction status module (ECSM)

The ECSM on this device features the following:

●

Platform configuration and revision

●

ECC error reporting for flash memory and SRAM

●

ECC error injection for SRAM

The ECSM module is replicated for each processor.

1.5.18

FlexCAN

The FlexCAN module is a communication controller implementing the CAN protocol

according to Bosch Specification version 2.0B. The CAN protocol was designed to be used

primarily as a vehicle serial data bus, meeting the specific requirements of this field: real-

time processing, reliable operation in the EMI environment of a vehicle, cost-effectiveness

and required bandwidth. FlexCAN module contains 32 message buffers.

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