Hercules is a line of ARM architecture-based microcontrollers from Texas Instruments built around one or more ARM Cortex cores. This "Hercules safety microcontroller platform" includes a series of microcontrollers specifically targeted for Functional Safety applications, through such hardware-base fault correction/detection features as dual cores that can run in lock-step, full path ECC, automated self testing of memory and logic, peripheral redundancy, and monitor/checker cores.
 The ARM logo | |
| Designer | ARM Holdings |
|---|---|
| Version | ARMv8-R, ARMv7-A, ARMv7-R, ARMv7E-M, ARMv7-M, ARMv6-M |
|---|---|
| Encoding | 32-bit except Thumb2 extensions use mixed 16- and 32-bit instructions. |
| Endianness | Bi (Little as default) |
| Extensions | Thumb-2 (mandatory since ARMv7), NEON, Jazelle, FPv4-SP |
| Registers | |
| General-purpose | 16 x 32-bit integer registers including PC and SP |
| Floating point | Up to 32 × 64-bit registers,[1] SIMD/floating-point (optional) |
This line includes the TMS470M, TMS570 and RM4 families. These families were "designed specifically for IEC 61508 and ISO 26262 safety critical applications".[2] However, they differ significantly in the degree of support for these safety standards:[3]
- TMS470
- Value Line Transportation and Safety MCUs
- Supports Safety for
- IEC 61508 systems
- RM4
- High Performance Industrial and Medical Safety MCUs
- Developed to Safety Standards
- IEC 61508 SIL-3
- TMS570
- High Performance Transportation and Safety MCUs
- Developed to Safety Standards
- IEC 61508 SIL-3
- ISO 26262 ASIL D
- In particular, TMS570 support for ASIL D is accomplished through dual lock-step cores.
See also
edit- IEC 61508 (Functional Safety Standard)
- ISO 26262 (Automotive Functional Safety Standard)
- Qorivva, a comparable 32-bit PowerPC safety microprocessor line from Freescale
References
edit- ^ "Procedure Call Standard for the ARM Architecture" (PDF). ARM Holdings. 30 November 2013. Retrieved 27 May 2013.
- ^ "Hercules Safety ARM MCUs". Texas Instruments.
- ^ "Hercules ARM® CortexTM-R4 Safety Microcontrollers" (PDF). Arrow Electronics. Retrieved 15 February 2014.
External links
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