Shenzhen Meiyuxin Technology Co., Ltd. [TI automotive chip Distributor] TMS5704357BZWTQQ1 ARM Microcontroller - MCU Hercules! ! !

Product Description:

The TMS5704357BZWTQQ1 device belongs to the Hercules TMS570 family of high-performance automotive-grade ARM® Cortex®-R-based MCUs. The device comes with comprehensive documentation, tools and software to assist in the development of ISO 26262 and IEC 61508 functional safety applications. Currently, the first evaluation is using the Hercules TMS570LC43x LaunchPad development kit. The TMS570LC4357 device has on-chip diagnostic features including: dual CPUs in lockstep; built-in self-test (BIST) logic for CPU, N2HET coprocessor, and on-chip SRAM; ECC protection on L1 cache, L2 flash, and SRAM memory. In addition, the device provides ECC or parity protection for peripheral memory and loopback on peripheral I/O.

The TMS5704357BZWTQQ1 device integrates 2 ARM Cortex-R5F floating-point CPUs running in lockstep with an efficiency of up to 1.66 DMIPS/MHz, which can provide up to DMIPS498DMIPSDMIPSDMIPSDMIPS performance by running at up to MHz300MHzMHz. The device supports the Big Endian [BE32] format.

The TMS5704357BZWTQQ1 device features 4MB of integrated flash memory and 512KB of data RAM supporting single-bit error correction and double-bit error detection. The flash memory on this device is an electrically erasable and programmable non-volatile memory that implements a 64-bit wide data bus interface. The flash operates from a 3.3V power input (the same level as the I/O power supply) for all read, program, and erase operations. SRAM supports read/write access in byte, halfword and word modes.

The TMS5704357BZWTQQ1 device features peripherals for real-time control-type applications, including 2 next-generation high-end timer (N2HET) timing coprocessors with a total of 64 I/O pins.

N2HET is an advanced smart timer that provides precise timing for real-time applications. The timer is software controlled and has a dedicated timer microprocessor and an attached I/O port. N2HET can be used for PWM output, capture or compare input, or GPIO. N2HET is particularly suitable for applications that require information from multiple sensors or drive actuators with complex and accurate time pulses. The High Side Timer Transfer Unit (HTU) is capable of performing DMA type transactions to transfer N2HET data to and from main memory. A Memory Protection Unit (MPU) is built into the HTU.

The Enhanced Pulse Width Modulator (ePWM) module is capable of generating complex pulse width waveforms with minimal CPU overhead or intervention. ePWM is easy to use and supports high-side and low-side PWM as well as dead-time generation. ePWM integrates trigger zone protection and is synchronized with the on-chip MibADC, making it ideal for digital motor control applications.

The Enhanced Capture (eCAP) module is essential if the system focuses on on-time capture of external events. The eCAP can also be used to monitor the ePWM output, or to easily generate a PWM when the application does not require capture.

The Enhanced Quadrature Encoder Pulse (eQEP) module connects directly to a linear or rotary incremental encoder to obtain position, orientation, and velocity information from rotating machinery in a high-performance motion and position control system.

The device features two 12-bit resolution MibADCs with a total of 41 channels and 64-word buffered RAM with parity protection. MibADC channels can be converted individually or can be grouped by software for special conversion sequences. 16 channels can be shared between the two MibADCs. Each MibADC supports 3 independent groups. Each sequence can be converted once when triggered, or can be configured to perform continuous conversion mode. The MibADC has a 10-bit mode that is compatible with earlier devices and can be used when higher conversion rates are required. One channel in MibADC1 and two channels in MibADC2 can be used in combination to convert temperature measurements from the 3 on-chip temperature sensors.

The device has multiple communication interfaces: 5 MibSPI; 4 UART (SCI) interfaces, 2 of which support LIN; 4 CAN; 2 I2C modules; 1 Ethernet controller; and 1 FlexRay controller. SPI provides a convenient serial interaction method for high-speed communication between similar shift register type devices. LIN supports the local interconnect standard (LIN 2.1) and can be used as a full-duplex mode UART using the standard non-return-to-zero (NRZ) format. DCAN supports the CAN 2.0B protocol standard and uses a serial multi-master communication protocol, which effectively supports distributed real-time control of robust communication at a maximum rate of 1Mbps. DCAN is ideal for applications in noisy and harsh environments, such as automotive and industrial, where reliable serial communication or multiplexed wiring is required. The FlexRay controller uses a two-channel serial, fixed-time-based, multi-master communication protocol that supports a communication rate of 10Mbps per channel. The FlexRay Transfer Unit (FTU) enables anonymous transfer of FlexRay data to and from the main CPU memory. The HTU transport unit is protected by a dedicated built-in MPU. The Ethernet module supports MII, RMII, and Management Data I/O (MDIO) interfaces. The I2C module is a multi-master communication module that provides an interface (via the I2C serial bus) between a microcontroller and an I2C-compatible device. The I2C module supports 100kbps and 400kbps rates.

The Frequency Modulated Phase Locked Loop (FMPLL) clock block multiplies the external frequency reference by a higher frequency used internally. The Global Clock Module (GCM) manages the mapping between available clock sources and internal device clock domains.

The device also features 2 external clock prescaler (ECP) blocks. When ECP is enabled, a continuous external clock is output on the ECLK1 and ECLK2 balls. The ECLK frequency is a user-programmable ratio of the peripheral interface clock (VCLK) frequency. This low frequency output, which can be monitored externally, serves as an indicator of the operating frequency of the device.

The direct memory access (DMA) controller has 32 channels, 48 peripheral requests, and ECC protection of its memory. DMA has a built-in MPU to protect memory from erroneous transfers.

The Error Signaling Module (ESM) monitors on-chip device errors and determines whether to trigger an interrupt or an external error pin/ball (nERROR) when a fault is detected. The nERROR signal can be monitored externally as an indicator of fault conditions within the microcontroller.

The External Memory Interface (EMIF) provides memory expansion to asynchronous and synchronous memory or other slave devices.

The device includes a parameter override module that enhances the debugging capabilities of application code. The POM can reroute flash accesses to internal RAM or to the EMIF, avoiding reprogramming for parameter updates in flash. This feature is especially useful during real-time system calibration.

The device implements several interfaces that enhance the debugging capabilities of application code. In addition to the built-in ARM Cortex-R5F CoreSight debug features, there are Embedded Cross Triggers (ECTs) that support interaction and synchronization of multiple trigger events within the SoC. External Trace Macrocell (ETM) provides instruction and data trace of program execution. For instrumentation purposes, a RAM Trace Port block (RTP) is implemented to support high-speed tracing of RAM and peripherals accessed by the CPU or any other master. A data modification module (DMM) provides the ability to write external data to the device memory. RTP and DMM have very little effect on the program execution time of the application code.

With integrated safety features and a wide range of communication and control peripherals, the TMS570LC4357 device is ideal for safety-critical, high-performance real-time control applications.