PXS20RM Datasheet, PDF (502/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Fault Collection and Control Unit (FCCU)
22.1.1 Glossary and acronyms
Table 22-1. Acronyms
Term
RCC
RCCU
IPS
NMI
IRQ
STCU
FSM
CF
NCF
WS
SW
NVM
CPU
Description
Redundancy control checkers
Redundancy control checker unit
Internal peripheral system
Non-maskable interrupts
Interrupt request
Self testing control unit
Finite state machine
Critical fault
Non-critical fault
Wait state
Software
Nonvolatile memory
Central processing unit
22.2 Main features
• Management of:
— 32 critical faults
— 32 non-critical faults
• Hardware or software fault recovery management
• Fault detection collection
• Fault injection (fake faults)
• External reaction via fault-state dedicated system signals (FCCU_F pins)
• Internal (chip) reactions (alarm state): interrupt request
• Internal (chip) reactions (fault state):
— Long ‘functional’ reset
— Short ‘functional’ reset
— Non-maskable interrupt (NMI)
— SAFE mode request
• Bi-Stable, Dual-Rail and Time Switching output protocols using FCCU_F pins
• Internal (to the FCCU) watchdog timer for the re-configuration phase
• Configuration lock
• NVM configuration loading
• Self-checking capabilities:
22-2
PXS20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor