ADSP-2185:  16-bit, 33 MIPS, 5 v, 2 serial ports, host port, 80 KB RAM

The ADSP-2185 is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications. ADI recently disclosed plans for a new ADSP-219x ...More

ADSP-2185:  16-bit, 33 MIPS, 5 v, 2 serial ports, host port, 80 KB RAM

Product Description

The ADSP-2185 is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications. ADI recently disclosed plans for a new ADSP-219x series. With speeds beyond 300MIPS, this new series is ADSP-218x code-compatible.

The ADSP-2185 combines the ADSP-2100 family base architecture (three computational units, data address generators and a program sequencer) with two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capabilities and on-chip program and data memory.

The ADSP-2185 integrates 80K bytes of on-chip memory configured as 16K words (24-bit) of program RAM and 16K words (16-bit) of data RAM. Power-down circuitry is also provided to meet the low power needs of battery operated portable equipment. The ADSP-2185 is available in 100-pin LQFP package.

In addition, the ADSP-2185 supports new instructions, which include bit manipulations- bit set, bit clear, bit toggle, bit test- new ALU constants, new multiplication instruction (x squared), biased rounding, result free ALU operations, I/O memory transfers and global interrupt masking, for increased flexibility.

Features

  • 30 ns Instruction Cycle Time 33 MIPS Sustained Performance
  • Single-Cycle Instruction Execution
  • ADSP-2100 Family Code Compatible, with Instruction Set Extensions
  • 80K Bytes of On-Chip RAM, Configured as 16K Words On-Chip Program Memory RAM and 16K Words On-Chip Data Memory RAM
  • Dual Purpose Program Memory for Both Instruction and Data Storage
  • 16-Bit Internal DMA Port for High Speed Access to On-Chip Memory (Mode Selectable)
  • 4 MByte Byte Memory Interface for Storage of Data Tables & Program Overlays
  • 8-Bit DMA to Byte Memory for Transparent Program and Data Memory Transfers (Mode Selectable)

Diagrams

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ADSP-2185 Diagram
Functional Block Diagram for ADSP-2185

Markets & Applications

  • Wired and Wireless Voice
  • VoIP/VoN
  • Optical Networking
  • Speech Recognition
  • Modems
  • Test and Measurement
  • Industrial Control

Specifications

Clock Speed (MHz) 33MHz
Program RAM Words(KWords) 16
Data RAM Word (KWords) 16
Ext. Memory Bus (Bits) 24bit
Host Port Yes
SPORT 2
SPI/UART No
Timers 1
Core Voltage (V) 5V
Package 100 LQFP
Pricing, Packaging & Availability

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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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