Overview
The TMS320C54CST, part of the TMS320C54x series from Texas Instruments, is a high-performance digital signal processor (DSP) designed primarily for client-side telephony applications. This DSP is based on an advanced modified Harvard architecture, featuring one program memory bus and three data memory buses. This architecture allows for simultaneous access to program instructions and data, providing a high degree of parallelism and supporting powerful arithmetic, logic, and bit-manipulation operations.
The processor includes on-chip memory, advanced peripherals, and a highly specialized instruction set, making it suitable for telephony and data modem applications. It supports various modes of operation, including chipset mode for stand-alone telephony/data modem and flex mode for code execution from RAM, ROM, or external sources.
Key Specifications
| Parameter | Specification |
|---|---|
| On-Chip ROM | 128K × 16-Bit Configured for Program Memory |
| On-Chip RAM | 40K x 16-Bit Composed of Five Blocks of 8K × 16-Bit Dual-Access Program/Data RAM |
| Arithmetic Logic Unit (ALU) | 40-Bit ALU Including a 40-Bit Barrel Shifter and Two Independent 40-Bit Accumulators |
| Multiplier | 17- × 17-Bit Parallel Multiplier Coupled to a 40-Bit Dedicated Adder |
| Instruction Execution Time | 8.33-ns Single-Cycle Fixed-Point Instruction Execution Time (120 MIPS) |
| Supply Voltages | 3.3-V I/O Supply Voltage, 1.5-V Core Supply Voltage |
| Package Options | 144-Pin Ball Grid Array (BGA), 144-Pin Low-Profile Quad Flatpack (LQFP) |
| On-Chip Peripherals | Two 16-Bit Timers, Six-Channel DMA Controller, Two McBSPs, UART, HPI8/16, Integrated DAA Module |
| Clock Generator | On-Chip Programmable Phase-Locked Loop (PLL) Clock Generator With External Clock Source |
Key Features
- Advanced Multibus Architecture: Three separate 16-bit data memory buses and one program memory bus.
- Highly Specialized Instruction Set: Supports single-cycle fixed-point instruction execution, single-instruction-repeat, block-repeat operations, and block-memory-move instructions.
- On-Chip Memory and Peripherals: Includes on-chip ROM, RAM, timers, DMA controller, McBSPs, UART, HPI8/16, and integrated DAA module.
- Power Management: IDLE1, IDLE2, and IDLE3 instructions with power-down modes and CLKOUT off control.
- Telephony Algorithms: Contains 14 TMS320 DSP Algorithm Standard Compliant Telephony Algorithms in ROM.
- Configurable Modes: Chipset mode for stand-alone telephony/data modem and flex mode for code execution from RAM, ROM, or external sources.
Applications
The TMS320C54CST is primarily designed for client-side telephony and data modem applications. It is suitable for:
- Telephony signals processing (DTMF, CPTD, Caller ID)
- Voice processing (Echo Canceller, G726, VAD, CNG, AGC)
- Data transfer (Modem up to V.32BIS 14400 bps)
- Integrated telecommunication systems
- VoIP and other voice-over-data applications
Q & A
- What is the primary application of the TMS320C54CST?
The primary application of the TMS320C54CST is client-side telephony and data modem.
- What type of architecture does the TMS320C54CST use?
The TMS320C54CST uses an advanced modified Harvard architecture with one program memory bus and three data memory buses.
- How much on-chip ROM does the TMS320C54CST have?
The TMS320C54CST has 128K × 16-Bit on-chip ROM configured for program memory.
- What are the key peripherals included in the TMS320C54CST?
The key peripherals include two 16-bit timers, a six-channel DMA controller, two McBSPs, a UART, an HPI8/16, and an integrated DAA module.
- What are the power supply voltages for the TMS320C54CST?
The power supply voltages are 3.3-V for I/O and 1.5-V for the core.
- Does the TMS320C54CST support power management features?
Yes, it supports IDLE1, IDLE2, and IDLE3 instructions with power-down modes and CLKOUT off control.
- What is the maximum addressable external program space for the TMS320C54CST?
The maximum addressable external program space is 8M × 16-Bit.
- Does the TMS320C54CST have any telephony algorithms preloaded?
Yes, it contains 14 TMS320 DSP Algorithm Standard Compliant Telephony Algorithms in ROM.
- What are the package options available for the TMS320C54CST?
The package options include a 144-Pin Ball Grid Array (BGA) and a 144-Pin Low-Profile Quad Flatpack (LQFP).
- Is ongoing design support available from TI for the TMS320C54CST?
No, ongoing design support from TI for new projects is not available for this product.
