GENERAL DESCRIPTION

The ADSP-2184 is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications.

The ADSP-2184 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.

FEATURES

PERFORMANCE

25 ns Instruction Cycle Time 40 MIPS Sustained

Performance

Single-Cycle Instruction Execution

Single-Cycle Context Switch

3-Bus Architecture Allows Dual Operand Fetches in

Every Instruction Cycle

Multifunction Instructions

Power-Down Mode Featuring Low CMOS Standby

Power Dissipation with 200 Cycle Recovery from

Power-Down Condition

Low Power Dissipation in Idle Mode

INTEGRATION

ADSP-2100 Family Code Compatible, with Instruction

Set Extensions

20K Bytes of On-Chip RAM, Configured as

4K Words On-Chip Program Memory RAM and

4K Words On-Chip Data Memory RAM

Dual Purpose Program Memory for Both Instruction

and Data Storage

Independent ALU, Multiplier/Accumulator and Barrel

Shifter Computational Units

Two Independent Data Address Generators

Powerful Program Sequencer Provides

Zero Overhead Looping Conditional Instruction

Execution

Programmable 16-Bit Interval Timer with Prescaler

100-Lead LQFP

YSTEM INTERFACE

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 and Program Overlays (Made Selectable)

8-Bit DMA to Byte Memory for Transparent Program

and Data Memory Transfers (Mode Selectable)

I/O Memory Interface with 2048 Locations Supports

Parallel Peripherals (Mode Selectable)

Programmable Memory Strobe and Separate I/O Memory

Space Permits “Glueless” System Design

(Mode Selectable)

Programmable Wait State Generation

Two Double-Buffered Serial Ports with Companding

Hardware and Automatic Data Buffering

Automatic Booting of On-Chip Program Memory from

Byte-Wide External Memory, e.g., EPROM, or

Through Internal DMA Port

Six External Interrupts

13 Programmable Flag Pins Provide Flexible System

Signaling

UART Emulation through Software SPORT Reconfiguration

ICE-Port™ Emulator Interface Supports Debugging

in Final Systems