Overview
The ADSP-2185NBST-320 is a single-chip microcomputer from Analog Devices Inc., optimized for digital signal processing (DSP) and other high-speed numeric processing applications. This device is part of the ADSP-218xN series, which offers high performance and low power consumption. The ADSP-2185NBST-320 combines the ADSP-2100 family base architecture with advanced features such as dual serial ports, a 16-bit internal DMA port, and extensive interrupt capabilities, making it a versatile solution for various DSP applications.
Key Specifications
| Specification | Value |
|---|---|
| Instruction Cycle Time | 12.5 ns @ 1.8 V (Internal) |
| Sustained Performance | 80 MIPS |
| On-Chip RAM | 80 KBytes (16K Words Program Memory, 16K Words Data Memory) |
| Package Type | 100-Lead LQFP (14mm x 14mm) |
| Power Consumption | 0.55 mW/MIP @ 1.8 V |
| Serial Ports | Two double-buffered serial ports with companding hardware |
| Interrupts | Up to six external interrupts, seven internal interrupts |
| Timer | Programmable 16-bit interval timer with prescaler |
| Flag Pins | Up to 13 general-purpose flag pins |
Key Features
- High Performance: 80 MIPS sustained performance with a 12.5 ns instruction cycle time at 1.8 V.
- Low Power Consumption: Low power dissipation in idle mode and power-down mode with low CMOS standby power.
- Advanced Architecture: 3-bus architecture allowing dual operand fetches in every instruction cycle, single-cycle instruction execution, and single-cycle context switch.
- Memory and Interfaces: 80 KBytes of on-chip RAM, 16-bit internal DMA port, byte DMA port, and I/O memory interface with programmable wait state generation.
- Serial Communication: Two double-buffered serial ports with companding hardware and automatic data buffering.
- Interrupt and Timer Capabilities: Up to six external interrupts, seven internal interrupts, and a programmable 16-bit interval timer with prescaler.
- Flag Pins and Emulator Interface: Up to 13 general-purpose flag pins and an ICE-Port™ emulator interface for debugging.
Applications
- Digital Signal Processing: Ideal for various DSP applications such as audio processing, image processing, and telecommunications.
- High-Speed Numeric Processing: Suitable for applications requiring high-speed numeric computations.
- Embedded Systems: Used in embedded systems that require efficient processing and low power consumption.
- Multiprocessor Systems: Can be used in multiprocessor systems due to its serial communication capabilities.
Q & A
- What is the ADSP-2185NBST-320 optimized for?
The ADSP-2185NBST-320 is optimized for digital signal processing (DSP) and other high-speed numeric processing applications.
- What is the instruction cycle time of the ADSP-2185NBST-320?
The instruction cycle time is 12.5 ns at 1.8 V.
- How much on-chip RAM does the ADSP-2185NBST-320 have?
The device has 80 KBytes of on-chip RAM, configured as 16K words of program memory and 16K words of data memory.
- What types of packages are available for the ADSP-2185NBST-320?
The device is available in a 100-lead LQFP package.
- Does the ADSP-2185NBST-320 support serial communication?
Yes, it supports serial communication through two double-buffered serial ports with companding hardware.
- How many interrupts does the ADSP-2185NBST-320 support?
The device supports up to six external interrupts and seven internal interrupts.
- What is the power consumption of the ADSP-2185NBST-320?
The power consumption is 0.55 mW/MIP at 1.8 V.
- Does the ADSP-2185NBST-320 have a programmable timer?
Yes, it has a programmable 16-bit interval timer with a prescaler.
- How many flag pins does the ADSP-2185NBST-320 have?
The device has up to 13 general-purpose flag pins.
- Is the ADSP-2185NBST-320 compatible with other ADSP-2100 family members?
Yes, the ADSP-2185NBST-320 is code-compatible with the ADSP-2100 family and other ADSP-218xN series members.
