Texas Instruments Key Features TMS32020, Memory Space, Memories, Repeat Instructions

TMS320 SECOND-GENERATION

DEVICES

SPRS010B Ð MAY 1987 Ð REVISED NOVEMBER 1990

Key Features: TMS32020 +5 V GND

• 200-ns Instruction Cycle Time

•544 Words of On-Chip Data RAM

• 128K Words of Total Data/Program	Interrupts	256-Word	288-Word	Data (16)
		Data/Prog	Data
Memory Space
		RAM	RAM	Multi-
• Wait States for Communication to Slower Off-Chip
		Multiplier		Processor
Memories
				Interface
• Source Code Compatible With the TMS320C1x
		32-BIT ALU/ACC		Serial
• Single-Cycle Multiply/Accumulate Instructions
		Shifters		Interface
• Repeat Instructions
				Address (16)
• Global Data Memory Interface		Timer

• Block Moves for Data/Program Management
• Five Auxiliary Registers With Dedicated	• On-Chip Clock Generator
Arithmetic Unit
	• Single 5-V Supply
• Serial Port for Multiprocessing or Interfacing
	• NMOS Technology
to Codecs, Serial Analog-to-Digital
Converters, etc.	• 68-Pin Grid Array (PGA) Package
Key Features: TMS320C25, TMS320C25-50, TMS320E25

• 80-ns Instruction Cycle Time (TMS320C25-50)

• 100-ns Instruction Cycle Time (TMS320C25)

• 4K Words of On-Chip Secure Program EPROM

(TMS320E25)

• 4K Words of On-Chip Program

ROM (TMS320C25)

• 544 Words of On-Chip RAM

• 128K Words of Total Program/Data

Memory Space

• Wait States for Communications to

Slower Off-Chip Memories

• Object-Code Compatible With the TMS32020

• Source-Code Compatible With TMS320C1x

• 24 Additional Instructions to Support

Interrupts

MP/MC

+5 V GND

256-Word 288-Word

Data/Prog Data

RAM RAM

4K-Words

ROM/EPROM

Multiplier

32-Bit ALU/ACC

Shifters

Timer

Data (16)

Multi-

Processor

Interface

Serial

Interface

Address (16)

Adaptive Filtering, FFTs, and

Extended-Precision Arithmetic

• Block Moves for Data/Program Management

• Single-Cycle Multiply/Accumulate Instructions

• Eight Auxiliary Registers With Dedicated

Arithmetic Unit

• Bit-Reversed Indexed-Addressing Mode for

Radix-2 FFTS

• Double-Buffered Serial Port

•On-Chip Clock Generator

•Single 5-V Supply

•Internal Security Mechanism (TMS320E25)

•68-to-28 Pin Conversion Adapter Socket

•CMOS Technology

•68-Pin Grid Array (PGA) Package (TMS320C25)

•68-Lead Plastic Leaded Chip Carrier (PLCC) Package (TMS320C25, TMS320C25-50)

•68-Lead CER-QUAD Package (TMS320E25)

4 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001