Overview
The TMS570LS3137, produced by Texas Instruments, is a high-performance automotive-grade microcontroller designed for safety-critical applications. This 16/32-bit RISC Flash microcontroller integrates the ARM Cortex-R4F Floating-Point CPU, offering efficient processing with up to 298 DMIPS at 180 MHz. The device features dual CPUs running in lockstep, ensuring high reliability and safety in real-time control applications. It includes a robust set of communication and control peripherals, making it an ideal solution for automotive and industrial safety systems.
Key Specifications
| Parameter | Specification |
|---|---|
| CPU | ARM Cortex-R4F 32-Bit RISC CPU |
| Performance | Up to 180 MHz, 1.66 DMIPS/MHz |
| Memory | 3MB Program Flash, 256KB Data RAM, 64KB Flash for Emulated EEPROM |
| Memory Protection | ECC on Flash and RAM, Parity Protection on Peripheral Memories |
| Communication Interfaces | 10/100 Mbps Ethernet MAC (EMAC), FlexRay Controller with 2 Channels, 3 CAN Controllers, LIN Interface, I2C, SPI, MibSPI |
| Timers | Two Next Generation High-End Timer (N2HET) Modules |
| ADCs | Two 12-Bit Multibuffered ADC Modules with up to 24 Channels |
| Supply Voltages | Core Supply Voltage (VCC): 1.2 V Nominal, I/O Supply Voltage (VCCIO): 3.3 V Nominal, ADC Supply Voltage (VCCAD): 3.0 to 5.25 V |
| Packages | 144-Pin Quad Flatpack (PGE), 337-Ball Grid Array (ZWT) |
Key Features
- Dual CPUs Running in Lockstep for High Reliability
- Built-In Self-Test (BIST) for CPU and On-chip RAMs
- Error Signaling Module With Error Pin
- Voltage and Clock Monitoring
- 12-Region Memory Protection Unit (MPU)
- Open Architecture With Third-Party Support
- Multiple Communication Interfaces: EMAC, FlexRay, CAN, LIN, I2C, SPI, MibSPI
- Two Next Generation High-End Timer (N2HET) Modules
- Two 12-Bit Multibuffered ADC Modules
- Embedded Trace Macrocell (ETM-R4), RAM Trace Port (RTP), Data Modification Module (DMM), Parameter Overlay Module (POM)
Applications
The TMS570LS3137 is designed for high-performance real-time control applications with safety-critical requirements, particularly in the automotive and industrial sectors. It is suitable for:
- Advanced Driver Assistance Systems (ADAS)
- Automotive Safety Systems (e.g., airbag control, anti-lock braking systems)
- Industrial Control Systems
- Medical Devices Requiring High Reliability
- Aerospace Applications
Q & A
- What is the primary CPU used in the TMS570LS3137?
The TMS570LS3137 uses the ARM Cortex-R4F 32-Bit RISC CPU.
- What is the maximum system clock frequency of the TMS570LS3137?
The maximum system clock frequency is up to 180 MHz.
- What type of memory protection does the TMS570LS3137 offer?
The device offers ECC on Flash and RAM, as well as parity protection on peripheral memories.
- What communication interfaces are available on the TMS570LS3137?
The device includes 10/100 Mbps Ethernet MAC (EMAC), FlexRay Controller with 2 Channels, 3 CAN Controllers, LIN Interface, I2C, SPI, and MibSPI.
- How many channels do the N2HET timers have?
The N2HET1 has 32 programmable channels, and the N2HET2 has 18 programmable channels.
- What is the resolution of the ADC modules?
The ADC modules are 12-bit multibuffered ADCs with up to 24 channels.
- What are the supply voltage requirements for the TMS570LS3137?
The core supply voltage (VCC) is 1.2 V nominal, the I/O supply voltage (VCCIO) is 3.3 V nominal, and the ADC supply voltage (VCCAD) is 3.0 to 5.25 V.
- What packages are available for the TMS570LS3137?
The device is available in 144-Pin Quad Flatpack (PGE) and 337-Ball Grid Array (ZWT) packages.
- Does the TMS570LS3137 support any specific safety protocols?
Yes, it supports safety protocols such as dual CPUs in lockstep, BIST for CPU and RAM, and error signaling modules.
- What is the purpose of the Parameter Overlay Module (POM)?
The POM allows dynamic calibration against production code of parameters and tables without rebuilding the code or halting the processor.
