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ADSP-2187LKST-210 Datasheet(PDF) 1 Page - Analog Devices

No. de pieza ADSP-2187LKST-210
Descripción Electrónicos  DSP Microcomputer
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
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ADSP-2187LKST-210 Datasheet(HTML) 1 Page - Analog Devices

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DSP Microcomputer
ADSP-2187L
REV. 0
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.
ICE-Port is a trademark of Analog Devices, Inc.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1998
GENERAL NOTE
This data sheet represents specifications for the ADSP-2187L
3.3 V processor.
GENERAL DESCRIPTION
The ADSP-2187L is a single-chip microcomputer optimized for
digital signal processing (DSP) and other high speed numeric
processing applications.
The ADSP-2187L combines the ADSP-2100 family base archi-
tecture (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-2187L integrates 160K bytes of on-chip memory
configured as 32K words (24-bit) of program RAM, and 32K
words (16-bit) of data RAM. Power-down circuitry is also pro-
vided to meet the low power needs of battery operated portable
equipment. The ADSP-2187L is available in 100-lead TQFP
package.
In addition, the ADSP-2187L 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.
Fabricated in a high speed, low power, CMOS process, the
ADSP-2187L operates with a 19 ns instruction cycle time. Ev-
ery instruction can execute in a single processor cycle.
FEATURES
PERFORMANCE
19 ns Instruction Cycle Time @ 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
Multifunction Instructions
Power-Down Mode Featuring Low CMOS Standby
Power Dissipation with 400 Cycle Recovery from
Power-Down Condition
Low Power Dissipation in Idle Mode
INTEGRATION
ADSP-2100 Family Code Compatible, with Instruction
Set Extensions
160K Bytes of On-Chip RAM, Configured as 32K Words
Program Memory RAM and 32K Words
Data Memory RAM
Dual Purpose Program Memory for 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 TQFP
SYSTEM INTERFACE
16-Bit Internal DMA Port for High Speed Access to
On-Chip Memory (Mode Selectable)
4 MByte Memory Interface for Storage of Data Tables
and Program Overlays (Mode 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
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
FUNCTIONAL BLOCK DIAGRAM
SERIAL PORTS
SPORT 1
SPORT 0
MEMORY
PROGRAMMABLE
I/O
AND
FLAGS
BYTE DMA
CONTROLLER
32K 24 PM
8K 24 OVERLAY 1
8K 24 OVERLAY 2
TIMER
ADSP-2100 BASE
ARCHITECTURE
SHIFTER
MAC
ALU
ARITHMETIC UNITS
POWER-DOWN
CONTROL
PROGRAM
SEQUENCER
DAG 2
DAG 1
DATA ADDRESS
GENERATORS
PROGRAM MEMORY ADDRESS
DATA MEMORY ADDRESS
PROGRAM MEMORY DATA
DATA MEMORY DATA
EXTERNAL
DATA
BUS
EXTERNAL
ADDRESS
BUS
INTERNAL
DMA
PORT
EXTERNAL
DATA
BUS
OR
FULL MEMORY
MODE
HOST MODE
32K 16 DM
8K 16 OVERLAY 1
8K 16 OVERLAY 2
() ()


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