Overview
The ADSP-2181KSZ-160, produced by Analog Devices Inc., is a single-chip microcomputer optimized for digital signal processing (DSP) and other high-speed numeric processing applications. It is part of the ADSP-2100 family and integrates advanced features to enhance performance and flexibility. The processor combines three computational units, data address generators, and a program sequencer, making it highly efficient for complex computations.
Key Specifications
| Specification | Details |
|---|---|
| Instruction Cycle Time | 25 ns from 20 MHz crystal @ 5.0 Volts |
| Sustained Performance | 40 MIPS |
| On-Chip Memory | 80 KB (16K words of program RAM, 16K words of data RAM) |
| Memory Interface | 4 MByte memory interface for data tables and program overlays |
| DMA Ports | 16-bit internal DMA port, 8-bit byte DMA port |
| Serial Ports | Two serial ports (SPORT 0 and SPORT 1) |
| Package Options | 128-pin TQFP, 128-pin PQFP |
| Power Consumption | Low CMOS standby power dissipation with 100 cycle recovery from power-down condition |
Key Features
- Three independent computational units: ALU, MAC, and shifter, allowing multiple operations in parallel.
- Single-cycle instruction execution and context switch.
- 3-bus architecture enabling dual operand fetches in every instruction cycle.
- Extensive interrupt capabilities and global interrupt masking.
- Programmable timer, flag I/O, and power-down circuitry for low power needs.
- Byte memory interface for accessing up to 4 MBytes of external memory.
- Support for multiprecision computations and numeric format control.
Applications
- Digital signal processing (DSP) applications.
- High-speed numeric processing applications.
- Portable equipment requiring low power consumption.
- Audio and speech processing systems.
- Image and video processing systems.
- Industrial control and automation systems.
Q & A
- What is the ADSP-2181KSZ-160 optimized for?
The ADSP-2181KSZ-160 is optimized for digital signal processing (DSP) and other high-speed numeric processing applications.
- What is the instruction cycle time of the ADSP-2181KSZ-160?
The instruction cycle time is 25 ns from a 20 MHz crystal at 5.0 Volts.
- How much on-chip memory does the ADSP-2181KSZ-160 have?
The ADSP-2181KSZ-160 has 80 KB of on-chip memory, configured as 16K words of program RAM and 16K words of data RAM.
- What types of DMA ports does the ADSP-2181KSZ-160 have?
The ADSP-2181KSZ-160 has a 16-bit internal DMA port and an 8-bit byte DMA port.
- What are the package options for the ADSP-2181KSZ-160?
The package options include 128-pin TQFP and 128-pin PQFP.
- Does the ADSP-2181KSZ-160 support low power modes?
Yes, it features low CMOS standby power dissipation with a 100 cycle recovery from power-down condition.
- What are the computational units available in the ADSP-2181KSZ-160?
The ADSP-2181KSZ-160 includes three independent computational units: ALU, MAC, and shifter.
- Can the ADSP-2181KSZ-160 perform multiple operations in parallel?
Yes, the 3-bus architecture allows for multiple operations in parallel, including fetching the next instruction, performing data moves, and updating data address pointers.
- What is the maximum external memory that can be accessed via the byte DMA port?
The byte DMA port can directly address up to 4 MBytes of external RAM or ROM.
- Does the ADSP-2181KSZ-160 support multiprecision computations?
Yes, the processor supports multiprecision computations and numeric format control.
