Overview
The TMS320C6457CCMH8 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.
Manufactured using 65-nm process technology, the C6457 device 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 an excellent choice for high-performance DSP programming challenges.
Key Specifications
| Specification | Details |
|---|---|
| Instruction Cycle Time | 1.18 ns, 1 ns, and 0.83 ns |
| Clock Rate | 850 MHz, 1 GHz, and 1.2 GHz |
| Instructions/Cycle | Eight 32-bit instructions |
| MIPS/MMACs | 8000 and 9600 MIPS/MMACs (16-bit) |
| Case 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) |
| Memory Architecture | 256K-bit (32K-byte) L1P program cache (direct mapped), 256K-bit (32K-byte) L1D data cache (2-way set associative), 2048KB L2 memory |
| Peripheral Interfaces | EDMA3 controller (64 independent channels), 32-/16-bit host-port interface (HPI), two 1.8-V McBSPs, 10/100/1000 Mb/s Ethernet MAC (EMAC), IEEE 802.3 compliant, UTOPIA Level 2 Slave ATM controller |
| Timers and GPIO | Two 64-bit general-purpose timers, configurable as four 32-bit timers, 16 general-purpose I/O (GPIO) pins |
| 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-performance processing.
- Instruction Set Enhancements: Includes dedicated SPLOOP instruction, compact instructions (16-bit), and exception handling.
- Memory Architecture: Features a two-level memory system with L1 and L2 caches, configurable as mapped RAM or cache.
- Peripheral Interfaces: Includes EDMA3 controller, HPI, McBSPs, EMAC, UTOPIA Level 2 Slave ATM controller, and GPIO pins.
- Coprocessors: Enhanced Viterbi and Turbo decoder coprocessors for accelerated channel-decoding operations.
- Serial RapidIO®: High-bandwidth peripheral for improved system performance and reduced system cost in multi-DSP applications.
- IEEE 1149.6 Compliant I/Os: Supports advanced I/O standards for improved system integration.
Applications
- Video and Telecom Infrastructure: Ideal for high-performance video processing and telecom infrastructure applications.
- Imaging/Medical: Suitable for medical imaging and other high-performance imaging applications.
- Wireless Infrastructure (WI): Used in wireless infrastructure for its high-performance DSP capabilities.
- Communications Infrastructure: Applies to various communications infrastructure needs due to its robust DSP core and peripheral set.
Q & A
- What is the clock rate of the TMS320C6457CCMH8?
The clock rate of the TMS320C6457CCMH8 can be 850 MHz, 1 GHz, or 1.2 GHz.
- What is the instruction cycle time of the TMS320C6457CCMH8?
The instruction cycle time can be 1.18 ns, 1 ns, or 0.83 ns.
- How many instructions can the TMS320C6457CCMH8 execute per cycle?
The device can execute eight 32-bit instructions per cycle.
- What is the MIPS/MMACs performance of the TMS320C6457CCMH8?
The device can achieve up to 8000 and 9600 MIPS/MMACs (16-bit).
- What are the operating temperature ranges for the TMS320C6457CCMH8?
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 type of memory architecture does the TMS320C6457CCMH8 have?
The device features a two-level memory system with L1 and L2 caches, where L1P is a direct mapped cache and L1D is a two-way set associative cache.
- What peripheral interfaces are available on the TMS320C6457CCMH8?
The device includes EDMA3 controller, HPI, McBSPs, EMAC, UTOPIA Level 2 Slave ATM controller, and GPIO pins.
- Does the TMS320C6457CCMH8 have any coprocessors?
Yes, it includes one enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B).
- What are the typical applications of the TMS320C6457CCMH8?
The device is typically used in video and telecom infrastructure, imaging/medical, and wireless infrastructure applications.
- Is the TMS320C6457CCMH8 compliant with any specific I/O standards?
Yes, it is IEEE 1149.6 compliant.
