Overview
The ADSP-2185LKST-115, produced by Analog Devices Inc., is a single-chip microcomputer optimized for digital signal processing (DSP) and other high-speed numeric processing applications. This device is part of the ADSP-2100 family and extends its base architecture with additional features such as two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, and extensive interrupt capabilities. The ADSP-2185LKST-115 is designed to meet the low power needs of battery-operated portable equipment and is available in a 100-pin LQFP package.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Type | DSP Fixed-Point 16-bit |
| Instruction Cycle Time | 30 ns |
| Sustained Performance | 28.8 MIPS (at 28.8 MHz) |
| On-Chip Memory | 80 KB (16K words program RAM, 16K words data RAM) |
| Package | 100-pin LQFP |
| Voltage | 5 V |
| Serial Ports | Two double-buffered serial ports |
| DMA Ports | 16-bit internal DMA port, 8-bit byte DMA port |
| Timer | Programmable 16-bit interval timer with prescaler |
| Interrupts | Six external interrupts, 13 programmable flag pins |
| Power-Down Mode | Low power dissipation in idle mode |
Key Features
- ADSP-2100 family code compatible with instruction set extensions.
- Dual purpose program memory for both instruction and data storage.
- Single-cycle instruction execution.
- Independent ALU, multiplier/accumulator, and barrel shifter computational units.
- Two independent data address generators and a powerful program sequencer.
- Programmable wait state generation and I/O memory interface with 2048 locations.
- Support for parallel peripherals and programmable memory strobe.
- UART emulation through software and SPORT reconfiguration.
- ICE-Port™ emulator interface for debugging in final systems.
- New instructions including bit manipulations, new ALU constants, and multiplication instructions.
Applications
- Digital signal processing (DSP) applications.
- High-speed numeric processing applications.
- Battery-operated portable equipment due to low power dissipation in idle mode.
- Embedded systems requiring high performance and low power consumption.
- Audio and video processing systems.
- Industrial control and automation systems.
Q & A
- What is the primary application of the ADSP-2185LKST-115?
The ADSP-2185LKST-115 is primarily used for digital signal processing (DSP) and other high-speed numeric processing applications.
- What is the instruction cycle time of the ADSP-2185LKST-115?
The instruction cycle time is 30 ns.
- How much on-chip memory does the ADSP-2185LKST-115 have?
The device has 80 KB of on-chip memory, configured as 16K words of program RAM and 16K words of data RAM.
- What type of package is the ADSP-2185LKST-115 available in?
The device is available in a 100-pin LQFP package.
- Does the ADSP-2185LKST-115 support low power modes?
- How many serial ports does the ADSP-2185LKST-115 have?
The device has two double-buffered serial ports.
- What is the function of the DMA ports in the ADSP-2185LKST-115?
The device has a 16-bit internal DMA port and an 8-bit byte DMA port for high-speed access to on-chip memory and transparent program and data memory transfers.
- Does the ADSP-2185LKST-115 support external interrupts?
- Can the ADSP-2185LKST-115 be used in embedded systems?
- What is the significance of the ICE-Port™ emulator interface in the ADSP-2185LKST-115?
The ICE-Port™ emulator interface supports debugging in final systems.
