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PPXD2010VLQ80R Datasheet(PDF) 8 Page - Freescale Semiconductor, Inc |
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PPXD2010VLQ80R Datasheet(HTML) 8 Page - Freescale Semiconductor, Inc |
8 / 30 page PXS20 Product Brief, Rev. 1 Features Freescale Semiconductor 8 The DPM mode increased performances can be estimated in first approximation as about 1.6× the performance of the LSM mode at the same frequency for shared program flash configuration (up to 2×, depending on software). PXS20 devices support only static configuration at power-on (either LSM or DPM). 2.4.3 Mode-Specific Performance Parameters •LSM: — Up to 240 million integer instructions per second (dual integer unit) — Up to 240 million floating point instructions per second (FPU) — Up to 480 million multiply and accumulate instructions per second (SPE) •DPM: — 384–480 million integer/floating point instructions per second — 768–960 million multiply and accumulate instructions per second 2.4.4 Functional Safety Suitability The PXS20 has been successfully assessed by Exida Certification (Official Certification issued on Nov. 30th 2007) to be fit for purpose to achieve a safety integrity level 3 (SIL3) as per IEC61508-part 2 standard with an overall SoC PFH of 0.1 FIT in LSM mode. The mode of operation which allows to reach the highest safety level with minimum software requirement is the Lock Step mode (LSM). SIL3 innovative safety concept: • LockStep mode and Fail-safe protection • Sphere of replication (SoR) for key components (such as CPU core, eDMA, crossbar switch) • Fault collection and control unit (FCCU) • Redundancy control and checker unit (RCCU) on outputs of the SoR connected to FCCU • Boot-time Built-In Self-Test for Memory (MBIST) and Logic (LBIST) triggered by hardware • Boot-time Built-In Self-Test for ADC and flash memory triggered by software • Replicated safety enhanced watchdog • Replicated junction temperature sensor • Non-maskable interrupt (NMI) • 16-region memory protection unit (MPU) • Clock monitoring units (CMU) • Power management unit (PMU) • Cyclic redundancy check (CRC) unit 2.5 Module Features |
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