Overview
The ADSP-2185BSTZ-133, 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-2185 is designed to meet the low power needs of battery-operated portable equipment and is available in a 100-pin LQFP package.
Key Specifications
| Specification | Details |
|---|---|
| Instruction Cycle Time | 30 ns |
| Sustained Performance | 33 MIPS |
| On-Chip RAM | 80K Bytes (16K words program RAM, 16K words data RAM) |
| Internal DMA Port | 16-bit, mode selectable |
| Byte DMA Port | 8-bit, mode selectable, supports up to 4 MByte external memory |
| Serial Ports | Two double-buffered serial ports with companding hardware and automatic data buffering |
| Programmable Timer | 16-bit interval timer with prescaler |
| Interrupts | Six external interrupts, seven internal interrupts |
| Package | 100-pin LQFP |
| Voltage | 5V |
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 memory strobe and separate I/O memory space
- UART emulation through software and SPORT reconfiguration
- ICE-Port™ emulator interface for debugging in final systems
- Low power dissipation in idle mode
Applications
The ADSP-2185 is suitable for a variety of applications, including:
- Digital signal processing (DSP)
- High-speed numeric processing
- Battery-operated portable equipment
- Embedded systems requiring low power and high performance
- Audio and video processing
- Industrial control and automation
- Medical devices and diagnostic equipment
Q & A
- What is the primary application of the ADSP-2185?
The ADSP-2185 is primarily used for digital signal processing (DSP) and other high-speed numeric processing applications.
- What is the instruction cycle time of the ADSP-2185?
The instruction cycle time of the ADSP-2185 is 30 ns.
- How much on-chip RAM does the ADSP-2185 have?
The ADSP-2185 has 80K bytes of on-chip RAM, configured as 16K words of program RAM and 16K words of data RAM.
- What types of DMA ports are available on the ADSP-2185?
The ADSP-2185 features a 16-bit internal DMA port and an 8-bit byte DMA port, both of which are mode selectable.
- How many serial ports does the ADSP-2185 have?
The ADSP-2185 has two double-buffered serial ports with companding hardware and automatic data buffering.
- What is the package type of the ADSP-2185?
The ADSP-2185 is available in a 100-pin LQFP package.
- Does the ADSP-2185 support low power modes?
Yes, the ADSP-2185 has low power dissipation in idle mode, making it suitable for battery-operated portable equipment.
- How many external interrupts can the ADSP-2185 handle?
The ADSP-2185 can handle up to six external interrupts.
- What is the ICE-Port™ emulator interface used for?
The ICE-Port™ emulator interface is used for debugging in final systems.
- Can the ADSP-2185 emulate a UART through software?
Yes, the ADSP-2185 can emulate a UART through software.
