Am486 Microprocessor Overview.pdf

1AMD Embedded Processor Division, Am486DX Overview

Systems in Silicon

Am486® Microprocessor Overview

Am486DX5-133 / 5x86™ - P75, Am486DX4-100,Am486DX2-66, Am486DE2-66


Systems in Silicon

Advanced Micro Devices

AMD is the world’s largest companythat focuses exclusively on

integrated circuits.


Systems in Silicon

E86 Embedded Processor Family

Leverage the billions of dollars of research anddevelopment on the world’s dominant architecture:

x86x86- Time-to-Market - Familiarity

- Price/Performance (System Cost) - Long Term Support

- Software Compatibility - Assured Growth Path

- Preserve Existing S/W Investment - Code Compactness

- Broad, Established set of Tools - Integration


Systems in Silicon

Am5x86

E86 Family of Microprocessors andMicrocontrollers

AmK6EAmK6E

Am386DX

Am386SX

80C18680C186

Am186EMAm186EM Am186ERAm186ER Am186EDAm186ED

ÉlanSC410 ÉlanSC400

ÉlanSC310 ÉlanSC300

Future 32-bitControllers



x86-compatible microprocessors

x86-compatible 32 bit microcontrollers

x86-compatible 16 bit microcontrollers

INTEGRATION

PE

RF

OR

MA

NC

E

Am188EMAm188EM Am188ERAm188ER

Am186ESAm186ES

Am188ESAm188ES

Am486DX


Systems in Silicon

Am486 Microprocessor

• Identical to standard 486DX products• 16-Kbyte, write back / write through cache• 3V core, 5V tolerant I/Os• 2x, 3x, or 4x clock multiples (66, 100 and 133MHz)• Available in 208 pin SQFP and 168 pin PGA

FloatingPoint

FloatingPoint

MemoryControl(& MMU)

MemoryControl(& MMU)

16-Kbyte Cache

16-Kbyte Cache

ALU &Register

File

ALU &Register

File

InstructionDecode

InstructionDecode

ControlROM

ControlROM

Pre

fetc

her

Pre

fetc

her

Bu

s In

terf

ace

Un

it

Bu

s In

terf

ace

Un

it

JTAGJTAG

PLL2/3/4x

PLL2/3/4x

Data

Address

Control

SMI

Cache cntl

JTAG

Clock

AMD Embedded Processor Division, Am486DX Overview

Systems in Silicon

Am486 CPU RoadmapAm486 CPU Roadmap

Am486DE2/668KWT

Am486DX2/6616KWB

Am486DX5-13316KWB

2Q96 3Q96 Future

4 C

lass

5 C

lass

5 Yr Support

While supplies last!

4Q96 1Q97

5 Yr Support

5 Yr Support

Am486DX4/10016KWB Industrial Temp

-40°C - 100°C1Q97

2Q97

$$$

$$$

$$$

Low CostSQFP

1Q98

1Q98


Systems in Silicon

Am486 DifferencesAm486 Differences

Processor Speed CLKMUL Cache Vcc TCASE PackageAm486DE2 66 2x: 8k 3.0-3.6 85 only PGA,

(N.C.) WT SQFP (PDE / PDH)

Am486DX2 66 2x: 16k 3.0-3.6 85, 100 PGA, (Pull Low) WB/WT 85, 100 SQFP (PDE),

85 only SQFP (PDH*)

Am486DX4 100 3x: 16k 3.0-3.6 85,100 PGA, (Pull High) WB/WT 85,100 SQFP (PDE), 85 only SQFP(PDH*)

Am486DX5 133 4x: 16k 3.3-3.6 85 only PGA, SQFP (PDE)

(Pull Low) WB/WT 3.15-3.6

* - New Low Cost (PDH-208) SQFP package available 1Q98


Systems in Silicon

Which 32-bit architectures have you used in the last 12 months for yourembedded system?

0

5

10

15

20

2548

6

683x

x

680x

0

386

i960

i860

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The 486 in Embedded DesignsResults From a Recent Study

Source: Embedded Systems Programming


Systems in Silicon

EE Times Survey Data32-bit Future Designs

10

20

30

40

50

60

SP

AR

Clit

e

Tra

nsp

ute

r

Plan to Use

0

68K

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b. x

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ire

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wer

PC

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0

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Ser

ies

26

60 58

26

712

37

10

4 2 37 9

33

3

10

3

All x86 97 (32%)All 68K 84 (27%)All PowerPC33 (11%)All Other 95 (30%)

Source: EE Times ‘96


Systems in Silicon

Am486 Popular Market Segments

• Networking Routers– Indoor Only, Perf. / Cost

• Telecom PBX Switches– Mainframes / Line Cards– Indoor only / In-Outdoor

• Digital Set Top Box /Consumer Appliance– Performance and Cost

• Mobile Computers– Power / Size / Integration

– Performance / Cost

• In-Flight Entertainment

• Japanese Word Processors &Pen PCs– Cost, Cost, Cost…

• POS Terminals• Industrial PC

– Industrial Temp./ Reliability

– Software Compatibility

– Scalable Cost / Performance

• Embedded PC / Controller– All combinations

• PC Upgrades– Commodity $ PGA


Systems in Silicon

Why are so many customers usingthe Am486 in embedded designs?

• Time to MarketTake advantage of the many useful peripherals, standards,software packages, and tools that have already beendeveloped for the PC market– Chip Sets and core logic– PCI, Local Bus and ISA busses– VGA / NTSC / PAL graphics controllers– Ethernet, USB, “Super I/O” chips, Etc.

In most cases the driver software and protocol stacksare already written and available for the x86 architecture!


Systems in Silicon


• Price/Performance

– Unlike many embedded processors, the Am5x86(TM)

and Am486 have already amortized theirdevelopment costs over the tens of millions of unitsshipped to PC customers. 78 Million in ‘96 and 91Million shipped in ‘97

– The Am5x86(TM) (486DX5-133) is the fastest 486processor on the market. It offers 5th generationperformance at a 4th generation price and systemdesign

– Wide range of pin and software compatible optionsfrom the DX2-66 in the Low Cost package to theAm5x86


Systems in Silicon

x86 $ /SPECint92 over Time

0

5

10

15

20

25

1Q92

2Q92

3Q92

4Q92

1Q93

2Q93

3Q93

4Q93

1Q94

2Q94

3Q94

4Q94

1Q95

2Q95

3Q95

4Q95

1Q96

2Q96

3Q96

4Q96

386DX-33 486DX2-66 486DX4-100 5x86(DX5-133)

$ / S

PE

Cin

t92


Systems in Silicon

Performance

0

20

40

60

80

100

120P

erfo

rman

ce (

MIP

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Am

5x86

(DX

5-13

3)

Am

486D

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Ela

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400

IBM

PP

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3GC

X

IBM

PP

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0

Str

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RM

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i386

EX


Systems in Silicon


• Software Compatibility– x86 is the Architecture with the widest support of

Operating Systems and Software ApplicationsPrograms.

• Broad, Established Set of Development Tools– The x86 Architecture has the widest range of highly

refined software development tools with great values /price.


Systems in Silicon


• Familiarity– Most engineers are already familiar with x86 hardware,

software, and design tools.

• Long Term Support and Integration– AMD’s Logic Products Division is committed to supporting

the embedded market with a long term and stable supply ofcompetitively priced microprocessors and microcontrollers.


Systems in Silicon


• Upgrade Roadmap– The x86 architecture has the broadest family of

software compatible processors in the world.– Desk top PC volume supports technology investment

that subsidizes embedded processors.• High speed cores available

– Frequencies now above 300 MHz

– Performance comparable to RISC• Shrinking geometries

– Lower and lower power

– Packaging advances


Systems in Silicon

Backup SlidesBackup SlidesFusionE86 Partners


Systems in Silicon

Third Party Support

• BIOS– Eurosoft, Ltd.– General Software– Phoenix Technologies– System Soft, Inc.

• DOS– Datalight– General Software– IBM– Microsoft– PharLap Software


Systems in Silicon

Third Party Support

• Real Time Operating Systems (RTOS)– Embedded Systems Products– Integrated Systems– JMI Software– KADAK Products– Microtec Research– Pacific Softworks– QNX Software Systems– US Software– Wind River Systems


Systems in Silicon

Third Party Support

• Emulation Tools– Applied Microsystems Corp.– Grammar Enginer– Microtek International

• Debugging and Testing Support– Hewlett Packard

• Chip Set Support– Acer Labs– Integraphics Systems– S-MOS– Trident Microsystems

• Software Support– Chronology– Eagle Design Automation– Synopsis (Logic Modeling)


Systems in Silicon

Third Party SupportEvaluation Boards / Development Platforms

US / Europe:– Acer Labs (ALi)– Adastra Systems– American Preditor– Ampro Computers– boards AG (Mikron)– Digital-Logic– Hectonic

– JUMPtec– Real Time Devices– Shuttle Computer– S-MOS– VersaLogic– WinSystems– Ziatech

Asia / Pacific:– Winco Electronic Co. LTD Phone : +886-2-2688-8666– SMT Electronic Co. LTD Phone : +886-3-325-3033– Shing-Yunn Electronic Co. LTD Phone : +886-2-908-

9980


Systems in Silicon

Third Party Support:Acer Laboratories, Inc.Acer Labs (ALi) is providing two resourceswhich will facilitate the use of the Am486 inembedded designs.• Long Term Chipset Support

Contact ALi to obtain a guarantee of long term support ontheir FinALi chipset.

• Design ExamplesALi is allowing AMD to release a copy of their M1489motherboard schematic. This shows how to implement anAm486-based design with a PCI bus.

AMD does not guarantee the full functionality of the design nor can AMD provide technical supportfor this design. AMD will have internally developed designs available in 2H98.


Systems in Silicon

Block Diagram

Am486

North

Bridge

M1489

South

Bridge

M1487

PCI Bus

ISA BusFlash

Peripheral Peripheral

Peripheral Peripheral

DRAM

Am486 Microprocessor Overview.pdf

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