Overview
The TMS320C25, part of the TMS320 family of digital signal processors from Texas Instruments, is a powerful and versatile 16/32-bit single-chip DSP. It combines the flexibility of a high-speed controller with the numerical capability of an array processor, offering an efficient alternative to multichip bit-slice processors. The TMS320C25 is processed in CMOS technology, which provides low power dissipation and high performance. It is object-code compatible with the TMS32020 and offers enhanced features such as additional instructions, auxiliary registers, and a hardware stack, making it a robust choice for various DSP applications.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time | 100 ns (TMS320C25), 80 ns (TMS320C25-50) |
| On-Chip Data RAM | 544 words |
| On-Chip Program ROM | 4K words (TMS320C25), 4K words of EPROM (TMS320E25) |
| Total Data/Program Memory Space | 128K words |
| ALU/Accumulator | 32-bit |
| Multiply Capability | 16 × 16-bit multiplier with a 32-bit product |
| Power Supply | Single 5-V supply |
| Packaging | 68-Pin PGA, PLCC, and CER-QUAD |
| Timer | On-chip 16-bit timer |
| Serial Port | Double-buffered serial port for direct codec interface |
Key Features
- 100-ns instruction cycle time (TMS320C25) and 80-ns for the high-speed version (TMS320C25-50)
- 544 words of on-chip data RAM and 4K words of on-chip program ROM (or EPROM for TMS320E25)
- 128K words of total data/program memory space
- 32-bit ALU/accumulator and 16 × 16-bit multiplier with a 32-bit product
- Block moves for data/program management and repeat instructions for efficient use of program space
- Double-buffered serial port for direct codec interface and on-chip clock generator
- Eight auxiliary registers with dedicated arithmetic unit and bit-reversed indexed-addressing mode for radix-2 FFTs
- Single 5-V supply and various packaging options (68-Pin PGA, PLCC, and CER-QUAD)
- On-chip timer for control operations and synchronization input for synchronous multiprocessor configurations
Applications
The TMS320C25 is suitable for a wide range of digital signal processing applications, including but not limited to:
- Audio and speech processing
- Image and video processing
- Telecommunications and networking
- Industrial control and automation
- Medical imaging and diagnostics
- Radar and sonar systems
Q & A
- What is the instruction cycle time of the TMS320C25? The instruction cycle time of the TMS320C25 is 100 ns, while the high-speed version, TMS320C25-50, has an instruction cycle time of 80 ns.
- How much on-chip data RAM does the TMS320C25 have? The TMS320C25 has 544 words of on-chip data RAM.
- What is the total data/program memory space of the TMS320C25? The total data/program memory space is 128K words.
- Does the TMS320C25 support serial communication? Yes, it has a double-buffered serial port for direct codec interface.
- What is the power supply requirement for the TMS320C25? The TMS320C25 requires a single 5-V supply.
- What packaging options are available for the TMS320C25? The TMS320C25 is available in 68-Pin PGA, PLCC, and CER-QUAD packages.
- Is the TMS320C25 compatible with other TMS320 processors? Yes, it is object-code compatible with the TMS32020 and source-code compatible with the TMS320C1x family.
- Does the TMS320C25 have an on-chip timer? Yes, it has an on-chip 16-bit timer for control operations.
- Can the TMS320C25 be used in multiprocessor configurations? Yes, it has synchronization inputs for synchronous multiprocessor configurations.
- Are there military versions of the TMS320C25 available? Yes, commercial and military versions are available.
