Overview
The TMS320C6457CCMHA is a high-performance fixed-point digital signal processor (DSP) from Texas Instruments, based on the third-generation VelociTI very-long-instruction-word (VLIW) architecture. This device is part of the TMS320C6000 DSP platform and is known for its exceptional performance in various applications such as video and telecom infrastructure, imaging/medical, and wireless infrastructure. The C6457 DSP offers a balance of high-speed control and numerical processing capabilities, making it an excellent choice for demanding DSP 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 |
| MIPS/MMACS | 8000 and 9600 MIPS/MMACS (16-bit) |
| Operating Temperature Range | 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) |
| Memory Architecture | L1P: 32KB direct mapped cache L1D: 32KB two-way set associative cache L2: 2048KB unified mapped RAM/cache (configurable up to 1MB cache) L3 ROM: 64KB |
| External Memory Interface | 64-bit EMIFA, supports asynchronous and synchronous memories |
| DDR2 Memory Controller | 32-bit DDR2-667 SDRAM |
| Serial RapidIO | Four 1× or one 4× links, v1.3 compliant, 1.25-, 2.5-, 3.125-Gbps link rates |
| Ethernet MAC | 10/100/1000 Mb/s, IEEE 802.3 compliant, SGMII v1.8 compliant |
| Package | 688-pin Ball Grid Array (BGA), 0.8-mm ball pitch |
Key Features
- High-Performance DSP Core: TMS320C64x+ DSP core with eight functional units, two register files, and two data paths.
- Embedded Coprocessors: One enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B) for accelerated channel-decoding operations.
- Memory and Cache: 32KB L1 program and data caches, 2048KB L2 unified cache, and 64KB L3 ROM.
- External Memory Interface: 64-bit EMIFA supporting asynchronous and synchronous memories, and a 32-bit DDR2-667 SDRAM controller.
- Serial RapidIO and Ethernet: Four 1× or one 4× Serial RapidIO links and a 10/100/1000 Mb/s Ethernet MAC with SGMII support.
- Peripheral Interfaces: Includes McBSPs, timers, GPIO, I2C bus, and UTOPIA Level 2 Slave ATM controller.
- Power and Temperature Management: Supports various operating temperatures and has advanced power management features.
Applications
- Video and Telecom Infrastructure: Ideal for high-performance video processing and telecom infrastructure applications.
- Imaging/Medical: Suitable for medical imaging and other high-resolution imaging applications.
- Wireless Infrastructure: Used in wireless base stations and other wireless communication systems.
- Other Applications: Also applicable in areas such as industrial automation, surveillance systems, and more.
Q & A
- What is the clock rate of the TMS320C6457 DSP?
The TMS320C6457 DSP has clock rates of 850 MHz, 1 GHz, and 1.2 GHz.
- What is the instruction cycle time of the TMS320C6457?
The instruction cycle times are 1.18 ns, 1 ns, and 0.83 ns for the respective clock rates.
- What is the MIPS/MMACS performance of the TMS320C6457?
The device achieves up to 8000 and 9600 MIPS/MMACS (16-bit) at its highest clock rate.
- What are the operating temperature ranges for the TMS320C6457?
The commercial temperature range is 0°C to 100°C (850 MHz), 0°C to 100°C (1 GHz), and 0°C to 95°C (1.2 GHz). The extended temperature range is -40°C to 100°C (1 GHz) and -40°C to 95°C (1.2 GHz).
- What memory architecture does the TMS320C6457 use?
The device features 32KB L1 program and data caches, 2048KB L2 unified cache, and 64KB L3 ROM.
- Does the TMS320C6457 support DDR2 memory?
Yes, it supports 32-bit DDR2-667 SDRAM.
- What serial interfaces are available on the TMS320C6457?
The device includes four 1× or one 4× Serial RapidIO links and a 10/100/1000 Mb/s Ethernet MAC with SGMII support.
- What are the key peripheral interfaces of the TMS320C6457?
The device includes McBSPs, timers, GPIO, I2C bus, and UTOPIA Level 2 Slave ATM controller.
- Is the TMS320C6457 suitable for medical imaging applications?
Yes, it is suitable for medical imaging and other high-resolution imaging applications due to its high performance and advanced features.
- What is the package type of the TMS320C6457?
The device is packaged in a 688-pin Ball Grid Array (BGA) with a 0.8-mm ball pitch.
