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SPC56EL70L3 Datasheet, PDF (20/128 Pages) STMicroelectronics – 4 KB instruction cache with error detection code | |||
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Introduction
SPC56EL70L3, SPC56EL70L5,PC564L70L3, SPC564L70L5
1.5.19
1.5.20
1.5.21
1.5.22
System timer module (STM)
The STM implements the following features:
ï· Up-counter with 4 output compare registers
ï· OS task protection and hardware tick implementation per AUTOSAR(a) requirement
The STM is replicated for each processor.
Software watchdog timer (SWT)
This module implements the following features:
ï· Fault tolerant output
ï· Safe internal RC oscillator as reference clock
ï· Windowed watchdog
ï· Program flow control monitor with 16-bit pseudorandom key generation
ï· Allows a high level of safety (SIL3 monitor)
The SWT module is replicated for each processor.
Fault collection and control unit (FCCU)
The FCCU module has the following features:
ï· Redundant collection of hardware checker results
ï· Redundant collection of error information and latch of faults from critical modules on
the device
ï· Collection of self-test results
ï· Configurable and graded fault control
â Internal reactions (no internal reaction, IRQ, Functional Reset, Destructive Reset,
or Safe mode entered)
â External reaction (failure is reported to the external/surrounding system via
configurable output pins)
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.
a. Automotive Open System Architecture
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DocID023953 Rev 5
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