Overview
The TMS320VC5409A is a fixed-point digital signal processor (DSP) from Texas Instruments, based on an advanced modified Harvard architecture. This processor features one program memory bus and three data memory buses, providing a high degree of parallelism. It includes an arithmetic logic unit (ALU) with significant parallel processing capabilities, application-specific hardware logic, on-chip memory, and various on-chip peripherals. The 5409A supports simultaneous access to program instructions and data, enabling two read operations and one write operation in a single cycle, which enhances its operational flexibility and speed.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 144-Pin Ball Grid Array (BGA) (GGU Suffix), 144-Pin Low-Profile Quad Flatpack (LQFP) (PGE Suffix) |
| Operating Temperature Range (°C) | -40 to 100 |
| Core Supply Voltage | 1.6-V (160 MIPS), 1.5-V (120 MIPS) |
| I/O Supply Voltage | 3.3-V |
| Instruction Execution Time | 6.25-ns (160 MIPS), 8.33-ns (120 MIPS) |
| On-Chip RAM | 32K x 16-Bit (Four blocks of 8K x 16-Bit dual-access program/data RAM) |
| On-Chip ROM | 16K x 16-Bit configured for program memory |
| Addressing Mode | Extended addressing mode for 8M x 16-Bit maximum addressable external program space |
| Peripherals | One 16-Bit Timer, Six-Channel DMA Controller, Three McBSPs, 8/16-Bit Enhanced Parallel Host-Port Interface (HPI8/16) |
Key Features
- Advanced Multibus Architecture with three separate 16-bit data memory buses and one program memory bus
- 40-Bit Arithmetic Logic Unit (ALU) including a 40-bit barrel shifter and two independent 40-bit accumulators
- 17- x 17-Bit parallel multiplier coupled to a 40-bit dedicated adder for non-pipelined single-cycle multiply/accumulate (MAC) operation
- Compare, Select, and Store Unit (CSSU) for the add/compare selection of the Viterbi operator
- Exponent encoder to compute an exponent value of a 40-bit accumulator value in a single cycle
- Two address generators with eight auxiliary registers and two auxiliary register arithmetic units (ARAUs)
- Data bus with a bus holder feature
- Enhanced external parallel interface (XIO2)
- Single-instruction-repeat and block-repeat operations for program code
- Block-memory-move instructions for better program and data management
- Instructions with a 32-bit long word operand and two- or three-operand reads
- Arithmetic instructions with parallel store and parallel load
- Conditional store instructions and fast return from interrupt
- On-chip programmable phase-locked loop (PLL) clock generator with internal oscillator or external clock source
- Power consumption control with IDLE1, IDLE2, and IDLE3 instructions with power-down modes
- On-chip scan-based emulation logic, IEEE Std 1149.1 (JTAG) boundary scan logic
Applications
The TMS320VC5409A is suitable for a variety of applications that require high-performance digital signal processing, such as:
- Telecommunications: for tasks like echo cancellation, voice compression, and modulation/demodulation.
- Audio Processing: for applications involving audio encoding, decoding, and enhancement.
- Industrial Control: for real-time control and monitoring systems.
- Medical Devices: for signal processing in medical imaging and diagnostic equipment.
- Aerospace and Defense: for radar, sonar, and other signal processing-intensive applications.
Q & A
- What is the architecture of the TMS320VC5409A?
The TMS320VC5409A is based on an advanced modified Harvard architecture with one program memory bus and three data memory buses.
- What is the maximum addressable external program space?
The maximum addressable external program space is 8M x 16-Bit.
- What type of arithmetic logic unit does the TMS320VC5409A have?
The TMS320VC5409A features a 40-Bit Arithmetic Logic Unit (ALU) including a 40-bit barrel shifter and two independent 40-bit accumulators.
- What are the key peripherals included in the TMS320VC5409A?
The key peripherals include one 16-Bit Timer, a six-channel DMA controller, three McBSPs, and an 8/16-Bit Enhanced Parallel Host-Port Interface (HPI8/16).
- What is the core supply voltage for the 160 MIPS version?
The core supply voltage for the 160 MIPS version is 1.6-V.
- Does the TMS320VC5409A support power-down modes?
Yes, it supports power-down modes with IDLE1, IDLE2, and IDLE3 instructions.
- What is the instruction execution time for the 160 MIPS version?
The instruction execution time for the 160 MIPS version is 6.25-ns.
- Does the TMS320VC5409A have on-chip memory?
Yes, it includes 32K x 16-Bit on-chip RAM and 16K x 16-Bit on-chip ROM.
- What is the purpose of the Compare, Select, and Store Unit (CSSU)?
The CSSU is used for the add/compare selection of the Viterbi operator.
- Does the TMS320VC5409A support JTAG boundary scan logic?
Yes, it supports on-chip scan-based emulation logic, IEEE Std 1149.1 (JTAG) boundary scan logic.
