SPC564L54L5 datasheet(20/160 Pages) STMICROELECTRONICS

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Introduction

SPC56XL60/54

20/160

Doc ID 15457 Rev 8

1.5.18

Periodic Interrupt Timer Module (PIT)

The PIT module implements the following features:

●

4 general purpose interrupt timers

●

32-bit counter resolution

●

Can be used for software tick or DMA trigger operation

1.5.19

System Timer Module (STM)

The STM implements the following features:

●

Up-counter with 4 output compare registers

●

OS task protection and hardware tick implementation per AUTOSAR(a) requirement

The STM is replicated for each processor.

1.5.20

Software Watchdog Timer (SWT)

This module implements the following features:

●

Fault tolerant output

●

Safe internal RC oscillator as reference clock

●

Windowed watchdog

●

Program flow control monitor with 16-bit pseudorandom key generation

●

Allows a high level of safety (SIL3 monitor)

The SWT module is replicated for each processor.

1.5.21

Fault Collection and Control Unit (FCCU)

The FCCU module has the following features:

●

Redundant collection of hardware checker results

●

Redundant collection of error information and latch of faults from critical modules on

the device

●

Collection of self-test results

●

Configurable and graded fault control

–

Internal reactions (no internal reaction, IRQ, Functional Reset, Destructive Reset,

or Safe mode entered)

–

External reaction (failure is reported to the external/surrounding system via

configurable output pins)

1.5.22

System Integration Unit Lite (SIUL)

The SIUL controls MCU reset configuration, pad configuration, external interrupt, general

purpose I/O (GPIO), internal peripheral multiplexing, and system reset operation. The reset

configuration block contains the external pin boot configuration logic. The pad configuration

block controls the static electrical characteristics of I/O pins. The GPIO block provides

uniform and discrete input/output control of the I/O pins of the MCU.

Automotive Open System Architecture

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