Overview
The TMS320C6457CGMHA2 is a high-performance fixed-point digital signal processor (DSP) from Texas Instruments, part of the TMS320C64x+™ DSP family. This device is based on the third-generation high-performance, advanced VelociTI™ very-long-instruction-word (VLIW) architecture. It is designed for demanding applications in communications infrastructure, video and telecom infrastructure, imaging/medical, and wireless infrastructure.
The C6457 device offers exceptional processing power with clock rates of 850 MHz, 1 GHz, and 1.2 GHz, and it can execute up to eight 32-bit instructions per cycle. It features a comprehensive set of peripherals and interfaces, including DDR2 memory controllers, Serial RapidIO links, Ethernet MAC, and multiple timers and serial ports.
Key Specifications
| Specification | Details |
|---|---|
| Processor Core | TMS320C64x+™ DSP Core |
| Instruction Cycle Time | 1.18 ns, 1 ns, 0.83 ns |
| Clock Rate | 850 MHz, 1 GHz, 1.2 GHz |
| Instructions per 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) |
| Memory Architecture | 256K-Bit (32K-Byte) L1P Program Cache, 32M-Byte Total Addressable External Memory Space |
| Memory Interface | 32-Bit DDR2 Memory Controller (DDR2-667 SDRAM) |
| Serial RapidIO Links | 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 |
| Timers | Two 64-Bit General-Purpose Timers, Configurable as Four 32-Bit Timers or Watchdog Timer |
| Package | FCBGA (CMH) package with 688 pins |
Key Features
- High-Performance DSP Core: Based on the TMS320C64x+™ DSP core with VelociTI™ VLIW architecture.
- Instruction Set Enhancements: Includes dedicated SPLOOP instruction, compact instructions (16-bit), and exception handling.
- Memory and Interface: Supports 256K-Bit L1P program cache, 32M-Byte total addressable external memory space, and a 32-bit DDR2 memory controller.
- Serial RapidIO Links: Four 1× Serial RapidIO® links (or one 4×), v1.3 compliant, with link rates of 1.25-, 2.5-, 3.125-Gbps.
- Ethernet MAC: 10/100/1000 Mb/s Ethernet MAC (EMAC), IEEE 802.3 compliant, supports SGMII, v1.8 compliant.
- Coprocessors: Includes one enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B) for accelerated channel-decoding operations.
- EDMA3 Controller: 64 independent channels for efficient data transfer.
- Host-Port Interface: 32-/16-bit host-port interface (HPI) for flexible system integration.
- Serial Ports: Two 1.8-V McBSPs (multichannel buffered serial ports).
- Timers and GPIO: Two 64-bit general-purpose timers (configurable as four 32-bit timers or watchdog timer) and a 16-pin general-purpose input/output port (GPIO).
Applications
- Communications Infrastructure: Ideal for telecom and wireless infrastructure applications.
- Video and Imaging: Suitable for video processing, imaging, and medical imaging applications.
- Wireless Infrastructure: Used in wireless base stations and other wireless communication systems.
- Medical Devices: Can be used in medical imaging and diagnostic equipment.
Q & A
- What is the TMS320C6457CGMHA2 processor based on?
The TMS320C6457CGMHA2 is based on the TMS320C64x+™ DSP core with VelociTI™ VLIW architecture.
- What are the clock rates available for the TMS320C6457CGMHA2?
The clock rates available are 850 MHz, 1 GHz, and 1.2 GHz.
- What type of memory interface does the TMS320C6457CGMHA2 support?
The device supports a 32-bit DDR2 memory controller (DDR2-667 SDRAM).
- Does the TMS320C6457CGMHA2 have any coprocessors?
Yes, it includes one enhanced Viterbi Decoder Coprocessor (VCP2) and two enhanced Turbo Decoder Coprocessors (TCP2_A and TCP2_B).
- What is the purpose of the EDMA3 controller in the TMS320C6457CGMHA2?
The EDMA3 controller has 64 independent channels for efficient data transfer.
- What types of serial ports are available on the TMS320C6457CGMHA2?
The device includes two 1.8-V McBSPs (multichannel buffered serial ports).
- What is the operating temperature range for the TMS320C6457CGMHA2?
The commercial operating 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 range is -40°C to 100°C (1 GHz) and -40°C to 95°C (1.2 GHz).
- What is the package type and pin count of the TMS320C6457CGMHA2?
The device is packaged in an FCBGA (CMH) package with 688 pins.
- Does the TMS320C6457CGMHA2 support Ethernet?
Yes, it includes a 10/100/1000 Mb/s Ethernet MAC (EMAC), which is IEEE 802.3 compliant and supports SGMII, v1.8 compliant.
- What development tools are available for the TMS320C6457CGMHA2?
The device has a complete set of development tools, including a new C compiler, an assembly optimizer, and a Windows® debugger interface.
