5962-9679001NXB

数字信号处理器 144-QFP -55 to 125

description

The SMQ320C32 is a member of the ’320C3x generation of digital signal processors from Texas Instruments. The SMQ320C32 is an enhanced 32-bit floating-point processor manufactured in 0.7-µm triple-level-metal CMOS technology. The enhancements to the ’320C3x architecture include a variable-width external-memory interface, faster instruction cycle time, power-down modes, two-channel DMA coprocessor with configurable priorities, flexible bootloader, relocatable interrupt-vector table, and edge- or level-triggered interrupts.

• Military Operating Temperature Range

   − 55°C to 125°C; QML Processing

• High-Performance Floating-Point Digital Signal Processor DSP SMQ320C32-50 5 V

   − 40-ns Instruction Cycle Time

   − 275 MOPS

   − 50 MFLOPS

   − 25 MIPS SMQ320C32-60 5 V

   − 33-ns Instruction Cycle Time

   − 330 MOPS

   − 60 MFLOPS

   − 30 MIPS

• 32-Bit High-Performance CPU

• 16-/32-Bit Integer and 32-/40-Bit Floating-Point Operations

• 32-Bit Instruction Word, 24-Bit Addresses

• Two 256 × 32-Bit Single-Cycle, Dual-Access On-Chip RAM Blocks

• Flexible Boot-Program Loader

• On-Chip Memory-Mapped Peripherals:

   − One Serial Port

   − Two 32-Bit Timers

   − Two-Channel Direct Memory Access DMA Coprocessor With Configurable Priorities

• Enhanced External Memory Interface That Supports 8-/16-/32-Bit-Wide External RAM for Data Access and Program Execution From 16-/32-Bit-Wide External RAM

• SMJ320C30 and SMJ320C31 Object Code Compatible

• Fabricated Using Enhanced Performance Implanted CMOS EPIC Technology by Texas Instruments

• 144-Pin Plastic Quad Flatpack PCM Suffix 5 V

• Eight Extended-Precision Registers

• 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

• One External Pin, PRGW, That Configures the External-Program-Memory Width to 16 or 32 Bits

• Two Sets of Memory Strobes STRB0 and STRB1 and One I/O Strobe IOSTRB Allow Zero-Glue Logic Interface to Two Banks of Memory and One Bank of External Peripherals

• Separate Bus-Control Registers for Each Strobe-Control Wait-State Generation, External Memory Width, and Data Type Size

• STRB0 and STRB1 Memory Strobes Handle 8-, 16-, or 32-Bit External Data Accesses Reads and Writes

• Multiprocessor Support Through the HOLD and HOLDA Signals Is Valid for All Strobes