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ADSP-2189M Datasheet(PDF) 2 Page - Analog Devices

Part No. ADSP-2189M
Description  DSP Microcomputer
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADSP-2189M Datasheet(HTML) 2 Page - Analog Devices

 
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REV. A
ADSP-2189M
–2–
Fabricated in a high speed, low power, CMOS process, the
ADSP-2189M operates with a 13.3 ns instruction cycle time.
Every instruction can execute in a single processor cycle.
The ADSP-2189M’s flexible architecture and comprehensive
instruction set allow the processor to perform multiple opera-
tions in parallel. In one processor cycle, the ADSP-2189M 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
This takes place while the processor continues to:
• Receive and transmit data through the two serial ports
• Receive and/or transmit data through the internal DMA port
• Receive and/or transmit data through the byte DMA port
• Decrement timer
DEVELOPMENT SYSTEM
The ADSP-2100 Family Development Software, a complete set
of tools for software and hardware system development, sup-
ports the ADSP-2189M. The System Builder provides a high
level method for defining the architecture of systems under
development. The Assembler has an algebraic syntax that is easy
to program and debug. The Linker combines object files into an
executable file. The Simulator provides an interactive instruc-
tion-level simulation with a reconfigurable user interface to
display different portions of the hardware environment.
A PROM Splitter generates PROM programmer compatible
files. The C Compiler, based on the Free Software Foundation’s
GNU C Compiler, generates ADSP-2189M assembly source
code. The source code debugger allows programs to be cor-
rected in the C environment. The Runtime Library includes over
100 ANSI-standard mathematical and DSP-specific functions.
The EZ-KIT Lite is a hardware/software kit offering a complete
development environment for the entire ADSP-21xx family: an
ADSP-218x-based evaluation board with PC monitor software
plus Assembler, Linker, Simulator and PROM Splitter software.
The ADSP-218x EZ-KIT Lite is a low cost, easy to use hard-
ware platform on which you can quickly get started with your
DSP software design. The EZ-KIT Lite includes the following
features:
• 33 MHz ADSP-218x
• Full 16-bit Stereo Audio I/O with AD1847 SoundPort
®
Codec
• RS-232 Interface to PC with Windows 3.1 Control Software
• EZ-ICE Connector for Emulator Control
• DSP Demo Programs
The ADSP-218x EZ-ICE
® Emulator aids in the hardware de-
bugging of an ADSP-2189M system. The emulator consists of
hardware, host computer resident software and the target board
connector. The ADSP-2189M integrates on-chip emulation
support with a 14-pin ICE-Port interface. This interface pro-
vides a simpler target board connection that requires fewer
mechanical clearance considerations than other ADSP-2100
Family EZ-ICEs. The ADSP-2189M device need not be re-
moved from the target system when using the EZ-ICE, nor are
any adapters needed. Due to the small footprint of the EZ-ICE
connector, emulation can be supported in final board designs.
The EZ-ICE performs a full range of functions, including:
• In-target operation
• Up to 20 breakpoints
• Single-step or full-speed operation
• Registers and memory values can be examined and altered
• PC upload and download functions
• Instruction-level emulation of program booting and execution
• Complete assembly and disassembly of instructions
• C source-level debugging
See “Designing An EZ-ICE-Compatible Target System” in the
ADSP-2100 Family EZ-Tools Manual (ADSP-2181 sections) as
well as the Designing an EZ-ICE compatible System section of
this data sheet for the exact specifications of the EZ-ICE target
board connector.
Additional Information
This data sheet provides a general overview of ADSP-2189M
functionality. For additional information on the architecture and
instruction set of the processor, refer to the ADSP-2100 Family
User’s Manual, Third Edition. For more information about the
development tools, refer to the ADSP-2100 Family Develop-
ment Tools Data Sheet.
ARCHITECTURE OVERVIEW
The ADSP-2189M instruction set provides flexible data moves
and multifunction (one or two data moves with a computation)
instructions. Every instruction can be executed in a single pro-
cessor cycle. The ADSP-2189M assembly language uses an
algebraic syntax for ease of coding and readability. A compre-
hensive set of development tools supports program development.
SERIAL PORTS
SPORT 1
SPORT 0
MEMORY
PROGRAMMABLE
I/O
AND
FLAGS
BYTE DMA
CONTROLLER
PROGRAM
MEMORY
32K
24 BIT
DATA
MEMORY
48K
16 BIT
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
Figure 1. Functional Block Diagram
Figure 1 is an overall block diagram of the ADSP-2189M. The
processor contains three independent computational units: the
ALU, the multiplier/accumulator (MAC) and the shifter. The
computational units process 16-bit data directly and have provi-
sions to support multiprecision computations. The ALU per-
forms a standard set of arithmetic and logic operations; division
primitives are also supported. The MAC performs single-cycle
multiply, multiply/add and multiply/subtract operations with 40
bits of accumulation. The shifter performs logical and arith-
metic shifts, normalization, denormalization and derive expo-
nent operations.
The shifter can be used to efficiently implement numeric
format control including multiword and block floating-point
representations.
EZ-ICE and SoundPort are registered trademarks of Analog Devices, Inc.


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