Overview
The TMS320C6745DPTPA3 is a low-power digital signal processor (DSP) from Texas Instruments, based on the TMS320C674x DSP core. This device is part of the TMS320C6000™ platform and is designed to consume significantly lower power compared to other members of this family. It is tailored for original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly develop high-performance devices with integrated connectivity and peripheral options.
The TMS320C6745 offers a balance of high processing performance, low power consumption, and a rich set of peripherals, making it suitable for a variety of applications requiring high precision and connectivity.
Key Specifications
| Specification | Details |
|---|---|
| Processor Core | TMS320C674x VLIW DSP |
| Clock Speed | 375 MHz and 456 MHz |
| MIPS and MFLOPS | Up to 3648 MIPS and 2736 MFLOPS |
| Cache Memory | 32KB L1P Program Cache, 32KB L1D Data Cache, 256KB L2 Unified Cache |
| General-Purpose Registers | 64 General-Purpose Registers (32-Bit) |
| ALU Functional Units | Six ALU (32- and 40-Bit) Functional Units |
| Floating Point Support | Supports 32-Bit Integer, SP (IEEE Single Precision/32-Bit) and DP (IEEE Double Precision/64-Bit) Floating Point |
| External Memory Interfaces | EMIFA and EMIFB for SDRAM, NOR, and NAND Flash |
| Peripheral Set | 10/100 Mbps Ethernet MAC (EMAC), 2 I2C Bus interfaces, 2 McASPs, 2 64-bit General-Purpose Timers, 3 UART interfaces, etc. |
| USB Support | USB 2.0 Full-Speed Client, USB 2.0 Full- and Low-Speed Host |
| Package Type | 176-pin PowerPAD™ Plastic Quad Flat Pack (PTP suffix) |
Key Features
- Instruction Set Features: Superset of the C67x+ and C64x+ ISAs, byte-addressable (8-, 16-, 32-, and 64-Bit Data), normalization, saturation, bit-counting, and compact 16-bit instructions.
- Cache Architecture: Two-level cache-based architecture with 32KB L1P and L1D caches and a 256KB L2 unified cache.
- Enhanced Direct Memory Access Controller 3 (EDMA3): 2 transfer controllers, 32 independent DMA channels, 8 quick DMA channels, and programmable transfer burst size.
- Programmable Real-Time Unit Subsystem (PRUSS): Two independent PRU cores with 32-bit load and store RISC architecture, 4KB of instruction RAM per core, and 512 bytes of data RAM per core.
- Peripheral Set: Includes 10/100 Mbps Ethernet MAC (EMAC), two I2C Bus interfaces, two multichannel audio serial ports (McASPs), two 64-bit general-purpose timers, three UART interfaces, and more.
- Power Management: Standard power-management mechanism, clock gating, and entire subsystem under a single PSC clock gating domain.
- USB and Ethernet Support: USB 2.0 full-speed client and host, 10/100 Mbps Ethernet MAC (EMAC) with MDIO module.
Applications
- A/V Receivers: Ideal for audio processing and signal enhancement.
- Automotive Amplifiers: Suitable for high-performance audio systems in vehicles.
- Soundbars and Home Theatre Systems: Enhances audio quality and provides advanced signal processing capabilities.
- Professional Audio Equipment: Used in various professional audio applications requiring high precision and low latency.
- Network Streaming Audio: Supports streaming audio over networks with integrated Ethernet and USB interfaces.
Q & A
- What is the clock speed of the TMS320C6745 DSP?
The TMS320C6745 DSP operates at clock speeds of 375 MHz and 456 MHz.
- What is the cache memory architecture of the TMS320C6745?
The TMS320C6745 features a two-level cache-based architecture with 32KB L1P and L1D caches and a 256KB L2 unified cache.
- Does the TMS320C6745 support floating-point operations?
Yes, the TMS320C6745 supports 32-Bit Integer, SP (IEEE Single Precision/32-Bit), and DP (IEEE Double Precision/64-Bit) floating-point operations.
- What peripheral interfaces are available on the TMS320C6745?
The TMS320C6745 includes interfaces such as 10/100 Mbps Ethernet MAC (EMAC), two I2C Bus interfaces, two multichannel audio serial ports (McASPs), two 64-bit general-purpose timers, and three UART interfaces.
- What is the package type of the TMS320C6745DPTPA3?
The TMS320C6745DPTPA3 is packaged in a 176-pin PowerPAD™ Plastic Quad Flat Pack (PTP suffix).
- Does the TMS320C6745 support USB and Ethernet?
Yes, the TMS320C6745 supports USB 2.0 full-speed client and host, and 10/100 Mbps Ethernet MAC (EMAC) with an MDIO module.
- What are the power management features of the TMS320C6745?
The TMS320C6745 includes standard power-management mechanisms, clock gating, and an entire subsystem under a single PSC clock gating domain.
- What is the role of the Programmable Real-Time Unit Subsystem (PRUSS) in the TMS320C6745?
The PRUSS includes two independent PRU cores with 32-bit load and store RISC architecture, 4KB of instruction RAM per core, and 512 bytes of data RAM per core, which can be disabled via software to save power.
- What are some typical applications of the TMS320C6745?
The TMS320C6745 is used in A/V receivers, automotive amplifiers, soundbars, home theatre systems, professional audio equipment, and network streaming audio applications.
- How does the TMS320C6745 enhance audio processing?
The TMS320C6745 enhances audio processing through its high-precision floating-point capabilities, multichannel audio serial ports (McASPs), and other audio-specific peripherals.
