Overview
The SM320C6727B-EP, produced by Texas Instruments, is a high-performance 32-/64-bit floating-point digital signal processor (DSP) belonging to the C67x generation. This device is based on the enhanced C67x+ CPU, which is code-compatible with the C67x CPU but offers significant improvements in speed, code density, and floating-point performance per clock cycle. Operating at a maximum frequency of 250 MHz, the CPU can achieve up to 2400 MIPS/1800 MFLOPS by executing up to eight instructions in parallel each cycle, including six floating-point instructions.
The SM320C6727B-EP features a unified program/data memory system, with 256K bytes of RAM and 384K bytes of ROM, and supports single-cycle data accesses from the CPU. It also includes a large 32K-byte program cache, enhancing program execution efficiency from both on-chip and off-chip memories.
Key Specifications
| Specification | Value |
|---|---|
| Core Type | 32-/64-bit Floating-Point DSP |
| Maximum Clock Frequency | 250 MHz |
| Performance | Up to 2400 MIPS/1800 MFLOPS |
| On-Chip RAM | 256K bytes |
| On-Chip ROM | 384K bytes |
| Program Cache | 32K bytes |
| External Memory Interface (EMIF) | Supports SDRAM, asynchronous NOR Flash, SRAM, and NAND Flash |
| Package Type | 256-terminal, 1.0-mm, 16x16 Array Plastic Ball Grid Array (PBGA) |
| Voltage | Core: 1.2 V, I/O: 3.3 V |
| Process Technology | 0.13 µm |
Key Features
- Enhanced C67x+ CPU: Compatible with the C67x CPU but with significant enhancements in speed and floating-point performance.
- Universal Host-Port Interface (UHPI): Available only on the C6727, allows high-speed data transfers and security features.
- Multichannel Audio Serial Ports (McASP): Supports up to 16 stereo channels, TDM, I2S, and similar formats.
- Dual Data Movement Accelerator (dMAX): Capable of concurrent processing of two transfer requests and managing circular buffers/FIFOs.
- High-Performance Crossbar Switch: Supports parallel accesses from different bus masters to different targets.
- External Memory Interface (EMIF): Supports SDRAM, asynchronous NOR Flash, SRAM, and NAND Flash.
- Audio-Specific Instructions: New floating-point instructions to improve performance during audio processing.
Applications
- Professional Audio: Mixers, effects boxes, audio synthesis, instrument/amp modeling, and audio conferencing.
- Audio Broadcast: Audio encoding and decoding, audio streaming.
- Emerging Audio Applications: Biometrics, medical, industrial, and defense applications.
- Industrial and Medical: Supports various industrial and medical applications requiring high-performance DSP capabilities.
Q & A
- What is the maximum clock frequency of the SM320C6727B-EP?
The maximum clock frequency is 250 MHz.
- What is the performance of the SM320C6727B-EP in terms of MIPS and MFLOPS?
It can achieve up to 2400 MIPS/1800 MFLOPS.
- How much on-chip RAM and ROM does the SM320C6727B-EP have?
It has 256K bytes of RAM and 384K bytes of ROM.
- What type of package does the SM320C6727B-EP use?
It uses a 256-terminal, 1.0-mm, 16x16 Array Plastic Ball Grid Array (PBGA).
- What are the key features of the Enhanced C67x+ CPU?
The Enhanced C67x+ CPU is code-compatible with the C67x CPU but offers significant improvements in speed, code density, and floating-point performance per clock cycle.
- What is the Universal Host-Port Interface (UHPI) used for?
The UHPI allows high-speed data transfers and includes security features, available only on the C6727.
- What types of memory does the External Memory Interface (EMIF) support?
The EMIF supports SDRAM, asynchronous NOR Flash, SRAM, and NAND Flash.
- What are the applications of the SM320C6727B-EP in professional audio?
It is used in mixers, effects boxes, audio synthesis, instrument/amp modeling, and audio conferencing.
- Does the SM320C6727B-EP support industrial and medical applications?
Yes, it supports various industrial and medical applications requiring high-performance DSP capabilities.
- Is the SM320C6727B-EP still in production?
No, this product is no longer in production. New designs should consider an alternate product.
