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ADSP-21020

Analog Devices
Part Number ADSP-21020
Manufacturer Analog Devices
Description 32/40-Bit IEEE Floating-Point DSP Microprocessor
Published Nov 22, 2006
Detailed Description www.DataSheet4U.com a FEATURES Superscalar IEEE Floating-Point Processor Off-Chip Harvard Architecture Maximizes Signal...
Datasheet PDF File ADSP-21020 PDF File

ADSP-21020
ADSP-21020

Overview
www.
DataSheet4U.
com a FEATURES Superscalar IEEE Floating-Point Processor Off-Chip Harvard Architecture Maximizes Signal Processing Performance 30 ns, 33.
3 MIPS Instruction Rate, Single-Cycle Execution 100 MFLOPS Peak, 66 MFLOPS Sustained Performance 1024-Point Complex FFT Benchmark: 0.
58 ms Divide (y/x): 180 ns Inverse Square Root (1/√x ): 270 ns 32-Bit Single-Precision and 40-Bit Extended-Precision IEEE Floating-Point Data Formats 32-Bit Fixed-Point Formats, Integer and Fractional, with 80-Bit Accumulators IEEE Exception Handling with Interrupt on Exception Three Independent Computation Units: Multiplier, ALU, and Barrel Shifter Dual Data Address Generators with Indirect, Immediate, Modulo, and Bit Reverse Addressing Modes Two Off-Chip Memory Transfers in Parallel with Instruction Fetch and Single-Cycle Multiply & ALU Operations Multiply with Add & Subtract for FFT Butterfly Computation Efficient Program Sequencing with Zero-Overhead Looping: Single-Cycle Loop Setup Single-Cycle Register File Context Switch 15 (or 25) ns External RAM Access Time for Zero-WaitState, 30 (or 40) ns Instruction Execution IEEE JTAG Standard 1149.
1 Test Access Port and On-Chip Emulation Circuitry 223-Pin PGA Package (Ceramic) GENERAL DESCRIPTION 32/40-Bit IEEE Floating-Point DSP Microprocessor ADSP-21020 FUNCTIONAL BLOCK DIAGRAM DATA ADDRESS GENERATORS DAG 1 DAG 2 INSTRUCTION CACHE PROGRAM SEQUENCER JTAG TEST & EMULATION PROGRAM MEMORY ADDRESS DATA MEMORY ADDRESS EXTERNAL ADDRESS BUSES PROGRAM MEMORY DATA DATA MEMORY DATA EXTERNAL DATA BUSES REGISTER FILE TIMER ARITHMETIC UNITS ALU MULTIPLIER SHIFTER multiplier operations.
These computation units support IEEE 32-bit single-precision floating-point, extended precision 40-bit floating-point, and 32-bit fixed-point data formats.
• Data Register File A general-purpose data register file is used for transferring data between the computation units and the data buses, and for storing intermediate results.
This 10-port (16-registe...


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