Overview
The TMS320C25GBA is a second-generation digital signal processor (DSP) from Texas Instruments, part of the TMS320 family. This device is processed in CMOS technology and is known for its high performance and flexibility. It is pin-for-pin and object-code compatible with the TMS32020, making it a versatile choice for various applications. The TMS320C25GBA features an instruction cycle time of 100 ns and includes several enhancements such as additional instructions, auxiliary registers, and a bit-reversed indexed-addressing mode. It is available in extended-temperature range versions, making it suitable for a wide range of environments.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time | 100 ns |
| On-Chip Data RAM | 544 words |
| On-Chip Program ROM | 4K words |
| Total Program/Data Memory Space | 128K words |
| ALU/Accumulator | 32-bit |
| Multiplier | 16 × 16-bit with a 32-bit product |
| Package Types | 68-Pin PGA, PLCC, and CER-QUAD |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage | Single 5-V |
Key Features
- Enhanced instruction set with 133 instructions, including single-cycle multiply/accumulate instructions and block moves for data/program management.
- Eight auxiliary registers with a dedicated arithmetic unit.
- Bit-reversed indexed-addressing mode for radix-2 FFTs.
- Double-buffered serial port for direct codec interface.
- On-chip timer for control operations.
- Wait states for communication to slower off-chip memories/peripherals.
- Synchronization input for synchronous multiprocessor configurations.
- 68-to-28 pin conversion adapter socket for EPROM programming.
Applications
The TMS320C25GBA is designed for a variety of applications that require high-speed digital signal processing. These include:
- Audio and video processing.
- Image processing and analysis.
- Telecommunications and networking.
- Industrial control and automation.
- Military and aerospace systems due to its extended temperature range and military versions.
- Multiprocessor and multiprocessing configurations.
Q & A
- What is the instruction cycle time of the TMS320C25GBA?
The instruction cycle time of the TMS320C25GBA is 100 ns. - How much on-chip data RAM does the TMS320C25GBA have?
The TMS320C25GBA has 544 words of on-chip data RAM. - What types of packaging are available for the TMS320C25GBA?
The TMS320C25GBA is available in 68-Pin PGA, PLCC, and CER-QUAD packages. - Is the TMS320C25GBA compatible with other TMS320 models?
Yes, it is pin-for-pin and object-code compatible with the TMS32020. - What is the operating temperature range of the TMS320C25GBA?
The operating temperature range is -40°C to 85°C. - Does the TMS320C25GBA support multiprocessing configurations?
Yes, it supports various multiprocessing configurations, including standalone, parallel, and slave/host configurations. - What is the purpose of the on-chip timer in the TMS320C25GBA?
The on-chip timer is used for control operations and can generate interrupts at regular intervals. - Can the TMS320C25GBA interface with slower off-chip memories?
Yes, it can interface with slower off-chip memories using wait states. - Is the TMS320C25GBA suitable for military applications?
Yes, it is available in military versions and has an extended temperature range, making it suitable for military and aerospace systems. - What is the supply voltage requirement for the TMS320C25GBA?
The TMS320C25GBA requires a single 5-V supply voltage.
