Overview
The TMS320C6457CGMH2 is a high-performance fixed-point Digital Signal Processor (DSP) developed by Texas Instruments. It is part of the TMS320C64x+™ DSP family, which is based on the third-generation VelociTI™ very-long-instruction-word (VLIW) architecture. This architecture makes the C6457 an excellent choice for applications such as video and telecom infrastructure, imaging/medical, and wireless infrastructure.
The device is fabricated using 65-nm process technology and offers up to 9600 million instructions per second (MIPS) or 9600 16-bit MMACs per cycle at a 1.2-GHz clock rate. It combines the operational flexibility of high-speed controllers with the numerical capability of array processors, making it highly efficient for intensive signal processing tasks.
Key Specifications
| Specification | Details |
|---|---|
| Clock Rate | 850 MHz, 1 GHz, 1.2 GHz |
| Instruction Cycle Time | 1.18 ns, 1 ns, 0.83 ns |
| Instructions/Cycle | Eight 32-Bit Instructions/Cycle |
| MIPS/MMACS | 8000 and 9600 MIPS/MMACS (16-Bits) |
| Operating Temperature | Commercial: 0°C to 100°C (850 MHz), 0°C to 100°C (1 GHz), 0°C to 95°C (1.2 GHz) Extended: -40°C to 100°C (1 GHz), -40°C to 95°C (1.2 GHz) |
| Core Voltage | 1.10V |
| On-Chip Memory | 256K-Bit (32K-Byte) L1P Program Cache, 256K-Bit (32K-Byte) L1D Data Cache, 2048KB L2 Memory |
| Package | 688-FCBGA (23x23 mm) |
| Interfaces | Host Interface, I²C, McBSP, PCI, UTOPIA, 10/100/1000 Ethernet MAC |
Key Features
- High-Performance DSP Core: The TMS320C64x+™ DSP core employs eight functional units, two register files, and two data paths, enabling high-speed processing and multiple 16-bit × 16-bit multiply-accumulates (MACs) per cycle.
- Advanced Memory Architecture: The device includes a two-level memory system with 32KB L1 program and data caches and 2048KB L2 memory, configurable as mapped RAM, cache, or a combination of both.
- Embedded Coprocessors: Features three high-performance embedded coprocessors, including one enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B), which significantly speed up channel-decoding operations.
- Peripheral Set: Includes an inter-integrated circuit bus module (I²C), multichannel buffered serial ports (McBSPs), UTOPIA Slave port, general-purpose timers, host-port interface (HPI16/HPI32), GPIO, and a 10/100/1000 Ethernet media access controller (EMAC).
- Serial RapidIO®: A high-bandwidth peripheral that improves system performance and reduces system cost for applications with multiple DSPs.
Applications
- Video and Telecom Infrastructure: Ideal for high-performance video processing and telecom infrastructure applications due to its high bandwidth and processing capabilities.
- Imaging/Medical: Suitable for medical imaging and other imaging applications that require intensive signal processing.
- Wireless Infrastructure: Used in wireless infrastructure applications, including base stations and other wireless communication systems.
- Industrial Control Systems: Can be used in industrial control systems that require high-speed data processing and robust interface options.
Q & A
- What is the clock rate of the TMS320C6457CGMH2?
The clock rate of the TMS320C6457CGMH2 can be 850 MHz, 1 GHz, or 1.2 GHz.
- What is the instruction cycle time of the TMS320C6457CGMH2?
The instruction cycle time can be 1.18 ns, 1 ns, or 0.83 ns depending on the clock rate.
- How many instructions can the TMS320C6457CGMH2 execute per cycle?
The device can execute eight 32-bit instructions per cycle.
- What is the MIPS/MMACS performance of the TMS320C6457CGMH2?
The device offers up to 8000 and 9600 MIPS/MMACS (16-Bits).
- What are the operating temperature ranges for the TMS320C6457CGMH2?
The operating temperature ranges are 0°C to 100°C (commercial) and -40°C to 100°C (extended) depending on the clock rate.
- What is the core voltage of the TMS320C6457CGMH2?
The core voltage is 1.10V.
- What types of interfaces does the TMS320C6457CGMH2 support?
The device supports Host Interface, I²C, McBSP, PCI, UTOPIA, and 10/100/1000 Ethernet MAC.
- What is the package type of the TMS320C6457CGMH2?
The package type is 688-FCBGA with a 23x23 mm footprint.
- What are the key features of the embedded coprocessors in the TMS320C6457CGMH2?
The device includes an enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B) for accelerated channel-decoding operations.
- What are some typical applications of the TMS320C6457CGMH2?
Typical applications include video and telecom infrastructure, imaging/medical, wireless infrastructure, and industrial control systems.
