Overview
The TMS320C6727BZDHMUD is a high-performance 32-/64-bit floating-point digital signal processor (DSP) from Texas Instruments, part of the C672x series. This device is based on the enhanced C67x+ CPU, which offers significant improvements in speed, code density, and floating-point performance compared to its predecessors. The C6727B operates at frequencies up to 350 MHz, achieving a maximum performance of 2800 MIPS and 2100 MFLOPS. It is designed for demanding audio and signal processing applications, providing advanced features such as multichannel audio serial ports, a universal host-port interface, and enhanced memory systems.
Key Specifications
| Feature | TMS320C6727B | TMS320C6726B | TMS320C6722B | TMS320C6720 |
|---|---|---|---|---|
| Frequency (MHz) | 350, 300, 275, 250 | 266, 225 | 250, 225, 200 | 200 |
| Cycle Time (ns) | 2.8, 3.3, 3.6, 4 | 3.75, 4.4 | 4, 4.4, 5 | 5 |
| On-Chip Memory (KB) | 256KB RAM, 384KB ROM | 256KB RAM, 384KB ROM | 128KB RAM, 384KB ROM | 64KB RAM, 384KB ROM |
| Program Cache (KB) | 32KB | 32KB | 32KB | 32KB |
| EMIF Data Width | 32-bit | 16-bit | 16-bit | 16-bit |
| SDRAM Support | Up to 256M-bit and 512M-bit | Up to 128M-bit | Up to 128M-bit | Up to 128M-bit |
| Package Type | 256-Terminal Green PBGA (ZDH) | 144-Pin Green TQFP (RFP) | 144-Pin Green TQFP (RFP) | 144-Pin Green TQFP (RFP) |
| Process Technology | 0.13 µm | 0.13 µm | 0.13 µm | 0.13 µm |
Key Features
- Enhanced C67x+ CPU: Compatible with the C67x CPU but offers improved speed, code density, and floating-point performance.
- High-Performance Audio Processing: Three multichannel audio serial ports (McASP) with transmit/receive clocks up to 50 MHz, supporting TDM, I2S, and similar formats.
- Universal Host-Port Interface (UHPI): Available on the C6727B, providing a 32-bit-wide data bus for high-bandwidth parallel I/O.
- Enhanced Memory System: Includes 256KB unified program/data RAM, 384KB unified program/data ROM, and a large program cache.
- External Memory Interface (EMIF): Supports SDRAM, asynchronous NOR flash, SRAM, and NAND flash.
- Real-Time Interrupt Timer (RTI) and Watchdog: Includes two 32-bit counter/prescaler pairs, input captures, and compares with automatic update capability.
- Phase-Locked Loop (PLL) and Oscillator: Flexible clock generation with software-programmable PLL and support for external clock input.
- High-Performance Crossbar Switch and dMAX: Supports deterministic I/O performance and concurrent processing of two transfer operations.
Applications
- Professional Audio: Mixers, effects boxes, audio synthesis, instrument/amp modeling, and audio conferencing.
- Audio Broadcast and Encoding: Suitable for various audio broadcasting and encoding applications.
- Emerging Audio Applications: Supports biometrics and other emerging audio-related technologies.
- General Signal Processing: Can be used in a variety of signal processing tasks beyond audio, leveraging its high-performance DSP capabilities.
Q & A
- What is the maximum operating frequency of the TMS320C6727B?
The TMS320C6727B operates at frequencies up to 350 MHz.
- What type of CPU does the TMS320C6727B use?
The TMS320C6727B uses the enhanced C67x+ CPU.
- How much on-chip memory does the TMS320C6727B have?
The TMS320C6727B has 256KB of unified program/data RAM and 384KB of unified program/data ROM.
- What is the purpose of the Universal Host-Port Interface (UHPI)?
The UHPI provides a 32-bit-wide data bus for high-bandwidth parallel I/O, allowing an external host CPU to access memories on the DSP.
- What types of external memory does the TMS320C6727B support?
The TMS320C6727B supports SDRAM, asynchronous NOR flash, SRAM, and NAND flash.
- What is the role of the Real-Time Interrupt Timer (RTI) and Watchdog?
The RTI includes two 32-bit counter/prescaler pairs, input captures, and compares with automatic update capability, and an optional digital watchdog for enhanced system robustness.
- How does the phase-locked loop (PLL) contribute to the device's functionality?
The PLL provides flexible clock generation, allowing for software-programmable clock settings and support for external clock input.
- What is the significance of the high-performance crossbar switch and dMAX?
The high-performance crossbar switch and dMAX support deterministic I/O performance and concurrent processing of two transfer operations, enhancing overall system efficiency.
- In what applications is the TMS320C6727B commonly used?
The TMS320C6727B is commonly used in professional audio, audio broadcast, audio encoding, and other emerging audio applications.
- What is the package type of the TMS320C6727B?
The TMS320C6727B is available in a 256-Terminal Green PBGA (ZDH) package.
