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80386 ASIC CACHE ISA

MICRONICS COMPUTERS, INC.

80386 ASIC CACHE ISA

Processor

80386DX

Processor Speed

20/25/33MHz

Chip Set

Micronics

Max. Onboard DRAM

16MB

Cache

64KB (82385)

BIOS

Micronics

Dimensions

355.6mm x 304.8mm

I/O Options

Parallel port, serial ports (2), floppy drive interface, IDE interface

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J5

Serial port (COM1)

J610

Auxiliary keyboard

J6

Serial port (COM2)

J611

Speaker

J8

Reset switch

W1

External battery

J9

Turbo LED

W4

IDE interface LED

J60

Turbo switch

W5

Parallel port

J609

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Factory configured - do not alter

SW1/1

On

NPU enabled

SW1/2

Off

 

NPU disabled

SW1/2

On

Factory configured - do not alter

SW1/3

Off

Video BIOS shadowing enabled

SW1/4

On

 

Video BIOS shadowing disabled

SW1/4

Off

Factory configured - do not alter

SW1/5

Off

Monitor type select color

SW1/6

On

 

Monitor type select monochrome

SW1/6

Off

Cache enabled

SW1/7

On

 

Cache disabled

SW1/7

Off

Factory configured - do not alter

SW1/8

Off

Serial port (J610) select COM1/3F8-3FFh

SW2/1

On

 

Serial port (J610) disabled

SW2/1

Off

Serial port (J611) select COM2/2F8-2FF

SW2/2

On

 

Serial port (J611) disabled

SW2/2

Off

IDE interface (J606) enabled

SW2/3

On

 

IDE interface (J606) disabled

SW2/3

Off

Floppy interface (J607) enabled

SW2/4

On

 

Floppy interface (J607) disabled

SW2/4

Off

Floppy interface address select primary (3F0 - 3F7)

SW2/5

On

 

Floppy interface address select secondary (2F0 - 2F7)

SW2/5

open

Factory configured - do not alter

SW2/8

On

BIOS select 27256

W2

pins 2 & 3 closed

 

BIOS select 27512

W2

pins 1 & 2 closed

 

Non-cacheable region select E00000 through FFFFFF

W9

Closed

 

Non-cacheable region select D00000 through DFFFFF

W9

Open

Base memory size select 640KB

W10

Open

 

Base memory size select 512KB

W10

Closed

Factory configured - do not alter

W20

Open

Video BIOS cacheing enabled

W501

Closed

 

Video BIOS cacheing disabled

W501

Open

Floppy drive type select single speed

W603

Open

 

Floppy drive type select dual speed

W603

Closed

IDE interface (J606) precompensation mode normal (125ns)

W604

Closed

 

IDE interface (J606) precompensation mode alternate

W604

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

13MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

DRAM JUMPER CONFIGURATION

Size

W500

W510

1MB

pins 1 & 2 closed

pins 1 & 2 closed

2MB

pins 1 & 2 closed

pins 1 & 2 closed

4MB

pins 2 & 3 closed

pins 1 & 2 closed

5MB

pins 1 & 2 closed

pins 2 & 3 closed

6MB

pins 1 & 2 closed

pins 1 & 2 closed

8MB

pins 2 & 3 closed

pins 2 & 3 closed

9MB

pins 1 & 2 closed

pins 2 & 3 closed

10MB

pins 1 & 2 closed

pins 1 & 2 closed

12MB

pins 2 & 3 closed

pins 2 & 3 closed

13MB

pins 1 & 2 closed

pins 2 & 3 closed

16MB

pins 2 & 3 closed

pins 2 & 3 closed

CACHE CONFIGURATION

Size

Organization

Bank 0

Bank 1

32KB

Direct Mapped

(4) 8K x 8

NONE

64KB

2-way Set-Associative

(4) 8K x 8

(4) 8K x 8

CACHE JUMPER CONFIGURATION

Size

W14

W15

32KB

Closed

pins 1 & 2 closed

64KB

Open

pins 2 & 3 closed

PARALLEL PORT CONFIGURATION

Setting

SW2/6

SW2/7

LPT1/IRQ7/378-37F

On

On

LPT1/IRQ7/3B8-3BF

On

Off

LPT2/IRQ5/278-27F

Off

On

Disabled

Off

Off