Overview
The ADSP-2185L, specifically the ADSP-2185LKST-133 model, is a single-chip, 3.3V microcomputer designed by Analog Devices Inc. for digital signal processing (DSP) and other high-speed numeric processing applications. This microcomputer integrates advanced features and a robust architecture, making it suitable for a variety of demanding applications.
Key Specifications
| Specification | Details |
|---|---|
| Processor Type | DSP Microcomputer |
| Instruction Cycle Time | Up to 19 ns |
| Sustained Performance | 52 MIPS |
| Voltage | 3.3V |
| On-Chip Memory | 80 KB (16K words of 24-bit program RAM and 16K words of 16-bit data RAM) |
| Package Type | 100-Lead LQFP |
| Temperature Range | 0°C to 70°C |
| Serial Ports | 2 double-buffered serial ports with companding hardware and automatic data buffering |
| Interrupts | 6 external interrupts, 7 internal interrupts |
| Flag Pins | 13 programmable flag pins |
| Timer | Programmable 16-bit interval timer with prescaler |
Key Features
- Advanced Architecture: The ADSP-2185L is based on the ADSP-2100 family architecture, featuring three computational units (ALU, multiplier/accumulator, and barrel shifter), two data address generators, and a powerful program sequencer.
- Instruction Set Extensions: Includes new instructions such as bit manipulations, new ALU constants, and a new multiplication instruction (x squared), among others.
- Memory and DMA: Supports up to 160K bytes of on-chip RAM, 16-bit internal DMA port, and 8-bit DMA to byte memory for transparent program and data memory transfers.
- System Interface: Features programmable memory strobe, separate I/O memory space, and programmable wait state generation, allowing for “glueless” system design.
- Low Power Operation: Includes power-down mode with low CMOS standby power dissipation and fast recovery from power-down condition.
- Debugging and Emulation: Supports ICE-Port™ emulator interface for debugging in final systems.
Applications
The ADSP-2185L is optimized for various high-speed numeric processing and digital signal processing applications, including:
- Audio and video processing systems
- Telecommunications equipment
- Medical imaging and diagnostic devices
- Industrial control and automation systems
- Portable and battery-operated devices due to its low power consumption features
Q & A
- What is the primary application of the ADSP-2185L microcomputer?
The ADSP-2185L is primarily used for digital signal processing (DSP) and other high-speed numeric processing applications.
- What is the instruction cycle time of the ADSP-2185L?
The instruction cycle time is up to 19 ns.
- How much on-chip memory does the ADSP-2185L have?
The ADSP-2185L has 80 KB of on-chip memory, configured as 16K words of 24-bit program RAM and 16K words of 16-bit data RAM.
- What type of package is the ADSP-2185LKST-133 available in?
The ADSP-2185LKST-133 is available in a 100-Lead LQFP package.
- Does the ADSP-2185L support low power operation?
Yes, it includes power-down mode with low CMOS standby power dissipation and fast recovery from power-down condition.
- How many serial ports does the ADSP-2185L have?
The ADSP-2185L has two double-buffered serial ports with companding hardware and automatic data buffering.
- What is the temperature range for the ADSP-2185LKST-133?
The temperature range is 0°C to 70°C.
- Does the ADSP-2185L support debugging in final systems?
Yes, it supports ICE-Port™ emulator interface for debugging in final systems.
- How many external interrupts does the ADSP-2185L support?
The ADSP-2185L supports up to six external interrupts.
- What is the purpose of the programmable flag pins on the ADSP-2185L?
The 13 programmable flag pins provide flexible system signaling.
