a
DSP Microcomputer
ADSP-2183
FUNCTIONAL BLOCK DIAGRAM
FEATURES
PERFORMANCE
19 ns Instruction Cycle Time from 26.32 MHz Crystal
@ 3.3 Volts
52 MIPS Sustained Performance
Single-Cycle Instruction Execution
Single-Cycle Context Switch
3-Bus Architecture Allows Dual Operand Fetches in
Every Instruction Cycle
POWERDOWN
PROGRAMMABLE
CONTROL
I/O
FLAGS
MEMORY
DATA ADDRESS
GENERATORS
PROGRAM
SEQUENCER
PROGRAM
MEMORY
DATA
MEMORY
BYTE DMA
CONTROLLER
DAG 1 DAG 2
EXTERNAL
ADDRESS
BUS
PROGRAM MEMORY ADDRESS
DATA MEMORY ADDRESS
Multifunction Instructions
PROGRAM MEMORY DATA
DATA MEMORY DATA
Power-Down Mode Featuring Low CMOS Standby
Power Dissipation with 300 Cycle Recovery from
Power-Down Condition
EXTERNAL
DATA
BUS
ARITHMETIC UNITS
SERIAL PORTS
SPORT 0 SPORT 1
INTERNAL
DMA
PORT
TIMER
Low Power Dissipation in Idle Mode
ALU MAC SHIFTER
DMA
BUS
INTEGRATION
ADSP-2100 Family Code Compatible, with Instruction
Set Extensions
ADSP-2100 BASE
ARCHITECTURE
80K Bytes of On-Chip RAM, Configured as
16K Words On-Chip Program Memory RAM
16K 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
128-Lead LQFP, 144-Ball Mini-BGA
GENERAL DESCRIPTION
The ADSP-2183 is a single-chip microcomputer optimized for
digital signal processing (DSP) and other high speed numeric
processing applications.
The ADSP-2183 combines the ADSP-2100 family base architec-
ture (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-2183 integrates 80K bytes of on-chip memory con-
figured 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-2183 is available in 128-lead LQFP, and 144-Ball
Mini-BGA packages.
SYSTEM INTERFACE
16-Bit Internal DMA Port for High Speed Access to
On-Chip Memory
4 MByte Memory Interface for Storage of Data Tables
and Program Overlays
In addition, the ADSP-2183 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 trans-
fers and global interrupt masking, for increased flexibility.
8-Bit DMA to Byte Memory for Transparent
Program and Data Memory Transfers
I/O Memory Interface with 2048 Locations Supports
Parallel Peripherals
Programmable Memory Strobe and Separate I/O
Memory Space Permits “Glueless” System Design
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
ICE-Port™ Emulator Interface Supports Debugging
in Final Systems
Fabricated in a high speed, double metal, low power, CMOS
process, the ADSP-2183 operates with a 19 ns instruction cycle
time. Every instruction can execute in a single processor cycle.
The ADSP-2183’s flexible architecture and comprehensive
instruction set allow the processor to perform multiple opera-
tions in parallel. In one processor cycle the ADSP-2183 can:
• Generate the next program address
• Fetch the next instruction
• Perform one or two data moves
• Update one or two data address pointers
• Perform a computational operation
ICE-Port is a trademark of Analog Devices, Inc.
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 2000
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