Overview
The TMS320C6457CCMH 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 advanced VelociTI™ very-long-instruction-word (VLIW) architecture. This architecture makes the C6457 an excellent choice for applications in video and telecom infrastructure, imaging/medical, and wireless infrastructure (WI). The device is built on 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, providing cost-effective solutions to high-performance DSP programming challenges.
Key Specifications
| Specification | Details |
|---|---|
| Clock Rate | 850 MHz, 1 GHz, 1.2 GHz |
| Instruction Cycle Time | 1.18 ns, 1 ns, 0.83 ns |
| MIPS/MMACS | 8000 and 9600 MIPS/MMACS (16-Bits) |
| Operating Temperature Range | Commercial: 0°C to 100°C (850 MHz and 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) |
| Package | 688-Pin Ball Grid Array (BGA) Package (CMH or GMH Suffix), 0.8-mm Ball Pitch |
| L1 Memory | 256K-Bit (32K-Byte) L1P Program Cache (Direct Mapped), 256K-Bit (32K-Byte) L1D Data Cache (2-Way Set-Associative) |
| L2 Memory | 16M-Bit (2048K-Byte) L2 Unified Mapped RAM/Cache (Flexible Allocation), configurable up to 1MB of L2 Cache |
| L3 Memory | 512K-Bit (64K-Byte) L3 ROM |
| External Memory Interface | 64-Bit External Memory Interface (EMIFA), supports asynchronous and synchronous memories |
| DDR2 Memory Controller | 32-Bit DDR2 Memory Controller (DDR2-667 SDRAM) |
| Serial RapidIO | Four 1× Serial RapidIO® Links (or One 4×), v1.3 Compliant, 1.25-, 2.5-, 3.125-Gbps Link Rates |
| Ethernet MAC | 10/100/1000 Mb/s Ethernet MAC (EMAC), IEEE 802.3 Compliant, supports SGMII, v1.8 Compliant |
| Coprocessors | One enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B) |
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 numerical capabilities.
- Advanced Memory Architecture: The device includes a two-level memory system with L1 and L2 caches, and a large on-chip memory for efficient data handling.
- Serial RapidIO: High-bandwidth peripheral for improved system performance and reduced system cost in multi-DSP applications.
- DDR2 Memory Controller: Supports DDR2-667 SDRAM for high-speed memory access.
- Ethernet MAC: 10/100/1000 Mb/s Ethernet MAC (EMAC) for efficient network communication.
- Coprocessors: Enhanced Viterbi and Turbo Decoder Coprocessors for accelerated channel-decoding operations.
- Peripheral Set: Includes McBSPs, UTOPIA Slave port, general-purpose timers, HPI, GPIO, and more for versatile system integration.
- Power and Temperature Management: Supports various operating temperatures and voltage levels for different application requirements.
Applications
- Video and Telecom Infrastructure: Ideal for high-performance video processing and telecom infrastructure applications due to its advanced VLIW architecture and high-bandwidth peripherals.
- Imaging/Medical: Suitable for medical imaging and other high-performance imaging applications requiring advanced signal processing.
- Wireless Infrastructure (WI): Used in wireless infrastructure applications that demand high-speed data processing and efficient signal handling.
- Embedded Systems: Can be integrated into various embedded systems requiring high-performance DSP capabilities.
Q & A
- What is the TMS320C6457CCMH based on?
The TMS320C6457CCMH is based on the third-generation high-performance, advanced VelociTI™ very-long-instruction-word (VLIW) architecture developed by Texas Instruments.
- What are the clock rates available for the TMS320C6457CCMH?
The device operates at clock rates of 850 MHz, 1 GHz, and 1.2 GHz.
- What is the maximum MIPS/MMACS performance of the TMS320C6457CCMH?
The device can achieve up to 9600 MIPS/MMACS (16-Bits) at a 1.2-GHz clock rate.
- What type of memory architecture does the TMS320C6457CCMH have?
The device features a two-level memory system with L1 and L2 caches, and a large on-chip memory.
- Does the TMS320C6457CCMH support DDR2 memory?
Yes, it supports DDR2-667 SDRAM through its 32-Bit DDR2 Memory Controller.
- What are the key coprocessors included in the TMS320C6457CCMH?
The device includes one enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B).
- What is the purpose of the Serial RapidIO in the TMS320C6457CCMH?
The Serial RapidIO is a high-bandwidth peripheral that improves system performance and reduces system cost in multi-DSP applications.
- What are the operating temperature ranges for the TMS320C6457CCMH?
The commercial operating temperature range is 0°C to 100°C (850 MHz and 1 GHz), 0°C to 95°C (1.2 GHz), and the extended range is -40°C to 100°C (1 GHz), -40°C to 95°C (1.2 GHz).
- What type of Ethernet MAC does the TMS320C6457CCMH support?
The device supports a 10/100/1000 Mb/s Ethernet MAC (EMAC), which is IEEE 802.3 Compliant and supports SGMII, v1.8 Compliant.
- Is the TMS320C6457CCMH compatible with previous C6000 devices?
Yes, the C64x+ devices are upward code-compatible from previous devices that are part of the C6000™ DSP platform.
