DSP56002数据手册恩XP中文资料规格书

描述 Description

OverviewThe DSP56002 device has been placed on \"End of Life\" (EOL) status. Final orders must be placed by July 30, 2002.We suggest using the DSP56303VF100 in new designs. The DSP56303VF100 is a higher performance, 3.3V, 100% object code compatible 24-bit DSP with an exciting roadmap. Applications notes AN1829/D and AN1830/D describe the hardware and software differences between the DSP56002 and the DSP56303 (see below).

特性 Features

Digital Signal Processing Core

• Efficient, object code compatible, 24-bit 56000 family DSP engine
•Up to 33 Million Instructions Per Second (MIPS)
•30.3 ns instruction cycle at 66 MHz
•Up to 198 Million Operations Per Second (MOPS) at 66 MHz
•Performs a 1024-point complex Fast Fourier Transform (FFT) in 59,898 clocks
•Highly parallel instruction set with unique DSP addressing modes
•Two 56-bit accumulators including extension byte
•Parallel 24 x 24-bit multiply-accumulate in 1 instruction cycle (2 clock
cycles)
•Double precision 48 x 48-bit multiply with 96-bit result in 6 instruction
cycles
•56-bit addition/subtraction in 1 instruction cycle
•Fractional and integer arithmetic with support for multiprecision arithmetic

•Hardware support for block-floating point FFT-hardware nested DO loops
•Zero-overhead fast interrupts (2 instruction cycles)
•Four 24-bit internal data buses and three 16-bit internal address buses
for maximum information transfer on-chip



Memory
•On-chip Harvard architecture permitting simultaneous accesses to program and two data memories
•512 x 24-bit on-chip Program RAM and 64 x 24-bit bootstrap ROM
•Two 256 x 24-bit on-chip data RAMs
•Two 256 x 24-bit on-chip data ROMs containing sine, A-law and µ-law tables
•External memory expansion with 16-bit address and 24-bit data buses
•Bootstrap loading from external data bus, Host Interface, or Serial Communications Interface

Peripheral and Support Circuits
•Byte-wide Host Interface (HI) with Direct Memory Access (DMA) support
•Synchronous Serial Interface (SSI) to communicate with codecs and synchronous serial devices
•Up to thirty two software-selectable time slots in Network mode
•Serial Communication Interface (SCI) for full-duplex asynchronous communications
•24-bit timer/event counter also generates and measures digital waveforms
•On-chip peripheral registers memory mapped in data memory space
•Double-buffered peripherals