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1 Features

? High-Performance Floating-Point Digital Signal

Processor (DSP)

– SMx320VC33-150

– 13-ns Instruction Cycle Time

– 150 Million Floating-Point Operations per

Second (MFLOPS)

– 75 Million Instructions per Second (MIPS)

? 34K × 32-Bit (1.1-Mbit) On-Chip Words of Dual-

Access Static Random-Access Memory (SRAM)

Configured in 2 × 16K plus 2 × 1K Blocks to

Improve Internal Performance

? x5 Phase-Locked Loop (PLL) Clock Generator digital?

Very-Low Power: <200 mW at 150 MFLOPS

? 32-Bit High-Performance CPU

? 16-/32-Bit Integer and 32-/40-Bit Floating-Point

Operations

? Four Internally Decoded Page Strobes to Simplify

Interface to I/O and Memory Devices

? Boot-Program Loader

? EDGEMODE Selectable External Interrupts

? 32-Bit Instruction Word, 24-Bit Addresses

? Eight Extended-Precision Registers

? Fabricated Using the 0.18-μm (leff – Effective Gate

Length) TImeline? Technology by Texas

Instruments

? On-Chip Scan-Based Emulation Logic, IEEE Std

1149.1 (JTAG)

? On-Chip Memory-Mapped Peripherals:

– One Serial Port

– Two 32-Bit Timers

– Direct Memory Access (DMA) Coprocessor for

Concurrent I/O and CPU Operation

? 164-Pin Low-Profile Quad Flatpack (HFG Suffix)

? 144-Pin Non-Hermetic Ceramic Ball Grid Array floating(

CBGA) (GNM Suffix)

? Two Address Generators With Eight Auxiliary

Registers and Two Auxiliary Register Arithmetic

Units (ARAUs)

? Two Low-Power Modes

? Two- and Three-Operand Instructions

? Parallel Arithmetic/Logic Unit (ALU) and Multiplier

Execution in a Single Cycle

? Block-Repeat Capability

? Zero-Overhead Loops With Single-Cycle

Branches

? Conditional Calls and Returns

? Interlocked Instructions for Multiprocessing

Support

? Bus-Control Registers Configure Strobe-Control

Wait-State Generation

? 1.8-V (Core) and 3.3-V (I/O) Supply Voltages

2 Description

The SMx320VC33 DSP is a 32-bit, floating-point

processor manufactured in 0.18-μm four-level-metal

CMOS (TImeline) technology. The SMx320VC33 is

part of the SM320C3x? generation of DSPs from

Texas Instruments.

The SM320C3x internal busing and special digital?

signal-processing instruction set have the speed and

flexibility to execute up to 150 MFLOPS. The

SMx320VC33 optimizes speed by implementing

functions in hardware that other processors

implement through software or microcode. This

hardware-intensive approach provides performance

previously unavailable on a single chip.

The SMx320VC33 can perform parallel multiply and

ALU operations on integer or floating-point data in a

single cycle. Each processor also possesses a general-purpose register file, a program cache,

dedicated ARAUs, internal dual-access memories,

one DMA channel supporting concurrent I/O, and a

short machine-cycle time. These features result in

high performance and ease of use. General-purpose

applications are greatly enhanced by the large address space, multiprocessor interface, internally

and externally generated wait states, one external

interface port, two timers, one serial port, and

multiple-interrupt structure.

The SM320C3x supports a wide variety of system

applications from host processor to dedicated

coprocessor. High-level-language support is easily

implemented through a register-based architecture,

large address space, powerful addressing modes,

flexible instruction set, and well-supported floating(

point arithmetic.