TI RM48Lx30安全系统MCU解决方案

TI公司的RM48Lx30是高性能安全系统用的微控制器(MCU),它的安全架构包括两个步调一致的CPU,CPU和存储器内置自测(BIST)逻辑,闪存和数据SRAM的ECC,效率高达1.6 DMIPS/MHz的ARM® Cortex™-R4F浮点CPU,并可配置到在200MHz运行,提供高达320DMIPS,支持little-endian [LE32]格式,主要用在工业安全系统如工业自动化,安全PLC,电源产生和分布,电梯以及医疗电子如呼吸机, 心脏除颤器, 输液泵和胰岛素泵, 放射疗法和手术机器人等.本文介绍了RM48Lx30主要特性, 功能方框图和RM48 Hercules™ ARM® Safety MCU开发套件(HDK)主要特性,方框图与电路图.
The RM48Lx30 is a high performance microcontroller family for safety systems. The safety architecture includes Dual CPUs in lockstep, CPU and Memory Built-In Self Test (BIST) logic, ECC on both the Flash and the data SRAM, parity on peripheral memories, and loop back capability on peripheral IOs.
The RM48Lx30 integrates the ARM® Cortex™-R4F Floating Point CPU which offers an efficient 1.6 DMIPS/MHz, and has configurations which can run up to 200MHz providing up to 320 DMIPS. The device supports the little-endian [LE32] format.
The RM48Lx30 has up to 3MB integrated Flash and up to 256KB data RAM configurations with single bit error correction and double bit error detection. The flash memory on this device is a nonvolatile, electrically erasable and programmable memory implemented with a 64-bit-wide data bus interface. The flash operates on a 3.3V supply input (same level as I/O supply) for all read, program and erase operations. When in pipeline mode, the flash operates with a system clock frequency of up to 200MHz.
The SRAM supports single-cycle read/write accesses in byte, halfword, and word modes.
The RM48Lx30 device features peripherals for real-time control-based applications, including two Next Generation High End Timer (N2HET) timing coprocessors with up to 44 total IO terminals and a 12-bit Analog-to-Digital converter supporting up to 24 inputs.
The N2HET is an advanced intelligent timer that provides sophisticated timing fun...