x

SMJ: QML Processing to MIL−PRF−38535

TMP: Commercial Level Processing

Operating Temperature Ranges:

− Military (M) −55°C to 125°C

− Commercial (C) −25°C to 85°C

− Commercial (L) 0°C to 70°C

Highest Performance Floating-Point Digital

Signal Processor (DSP)

− ’C40-50:

40-ns Instruction Cycle Time:

50 MFLOPS, 25 MIPS, 275 MOPS,

320 MBps

− ’C40-40:

50-ns Instruction Cycle Time:

40 MFLOPS, 20 MIPS, 220 MOPS,

256 MBps

Six Communications Ports

6-Channel Direct Memory Access (DMA)

Coprocessor

Single-Cycle Conversion to and From

IEEE-745 Floating-Point Format

Single Cycle 1/x, 1/

Source-Code Compatible With SMJ320C30

Validated Ada Compiler

Single-Cycle 40-Bit Floating-Point,

32-Bit Integer Multipliers

12 40-Bit Registers, 8 Auxiliary Registers,

14 Control Registers, and 2 Timers

IEEE Standard 1149.1† Test-Access Port

(JTAG)

Two Identical External Data and Address

Buses Supporting Shared Memory Systems

and High Data-Rate, Single-Cycle

Transfers:

− High Port-Data Rate of 100 MBytes/s

(Each Bus)

− 16G-Byte Continuous

Program/Data/Peripheral Address Space

− Memory-Access Request for Fast,

Intelligent Bus Arbitration

− Separate Address-, Data-, and

Control-Enable Pins

− Four Sets of Memory-Control Signals

Support Different Speed Memories in

Hardware

Fabricated Using Enhanced Performance

Implanted CMOS (EPIC) Technology by

Texas Instruments (TI)

Separate Internal Program, Data, and DMA

Coprocessor Buses for Support of Massive

Concurrent Input/Output (I/O) of Program

and Data Throughput, Maximizing

Sustained Central Processing Unit (CPU)

Performance

On-Chip Program Cache and

Dual-Access/Single-Cycle RAM for

Increased Memory-Access Performance

− 512-Byte Instruction Cache

− 8K Bytes of Single-Cycle Dual-Access

Program or Data RAM

− ROM-Based Bootloader Supports

Program Bootup Using 8-, 16-, or 32-Bit

Memories Over Any One of the

Communications Ports

description

The TMP/SMJ320C40KGD DSP is a 32-bit, floating-point processor manufactured in 0.72-μm, double-level

metal CMOS technology. It is the fourth generation of DSPs from Texas Instruments, and it is the world’s first

DSP designed for parallel processing. The on-chip parallel processing capabilities of the ’C40 make the

floating-point performance required by many applications achievable and cost-effective.

The TMP/SMJ320C40 is the first DSP with on-chip communication ports for processor-to-processor

communication using simple communication software with no external hardware. This allows connectivity with

no external glue logic. The communication ports remove I/O bottlenecks, and the independent smart-DMA

coprocessor is able to handle the CPU I/O requirements.