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CAT48AF, CAP48AF

TMC RESEARCH CORPORATION

CAT48AF, CAP48AF

Processor

804846SX/SL80486SX/SL80486SX2/80486DX/SL80486DX/

TI486DX2/AM486/AM486+/80486DX2/SL80486DX2/TI486DX4/

80486DX4/P24D/P24T/CX5X86

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)MHz

Chip Set

ALI

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

128/256/512KB

BIOS

Unidentified

Dimensions

Unidentified

I/O Options

Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface 1

J1

Turbo switch

JP1 pins 7 & 17

IDE interface 2

J2

Turbo LED

JP1 pins 8 & 18

Floppy drive interface

J3

Reset switch

JP1 pins 9 & 19

Parallel port

J4

IDE interface LED

JP1 pins 10 & 20

Serial port 1

J5

Power LED & keylock

JP1 pins 11 - 15

Serial port 2

J6

PS/2 mouse interface

JP27

Speaker

JP1 pins 1 - 4

Auxiliary keyboard connector

KB1

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP19

Pins 1 & 2 closed

 

CMOS memory clear

JP19

Pins 2 & 3 closed

System reset when watch dog timer times out

JP20

Pins 1 & 2 closed

 

Activate NMI to CPU when watch dog timer times out

JP20

Pins 2 & 3 closed

 

Watch dog timer disabled

JP20

Open

Watch dog timer time out select 1 second

JP22

Open

 

Watch dog timer time out select 500ms

JP22

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 256K x 36

(1) 256K x 36

None

None

2MB

(1) 512K x 36

None

None

None

4MB

(1) 1M x 36

None

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 512K x 36

None

(1) 256K x 36

(1) 256K x 36

4MB

(1) 512K x 36

None

(1) 512K x 36

None

5MB

(1) 256K x 36

(1) 1M x 36

None

None

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

None

6MB

(1) 512K x 36

None

(1) 1M x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

8MB

(1) 2M x 36

None

None

None

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

10MB

(1) 512K x 36

None

(1) 1M x 36

(1) 1M x 36

10MB

(1) 512K x 36

None

(1) 2M x 36

None

12MB

(1) 1M x 36

None

(1) 2M x 36

None

16MB

(1) 4M x 36

None

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

None

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

None

(1) 2M x 36

None

17MB

(1) 256K x 36

(1) 4M x 36

None

None

20MB

(1) 1M x 36

(1) 4M x 36

None

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

32MB

(1) 8M x 36

None

None

None

64MB

(1) 16M x 36

None

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

None

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

None

(1) 8M x 36

None

128MB

(1) 16M x 36

(1) 16M x 36

None

None

128MB

(1) 32M x 36

None

None

None

CACHE CONFIGURATION

Size

Bank 0

TAG

128KB

(4) 32K x 8

(1) 8K x 8

256KB

(4) 64K x 8

(1) 16K x 8

512KB

(4) 128K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP13

JP14

128KB

Pins 2 & 3 closed

Pins 2 & 3 closed

256KB

Pins 2 & 3 closed

Pins 1 & 2 closed

512KB

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU SPEED SELECTION

Speed

JP15

JP16

JP17

JP18

25MHz

Pins 1 & 2 closed

Open

Open

Open

33MHz

Pins 1 & 2 closed

Closed

Closed

Open

40MHz

Pins 1 & 2 closed

Closed

Open

Open

50iMHz

Pins 1 & 2 closed

Open

Open

Open

50MHz

Pins 2 & 3 closed

Open

Closed

Closed

66iMHz

Pins 1 & 2 closed

Closed

Closed

Open

75iMHz

Pins 1 & 2 closed

Open

Open

Open

80iMHz

Pins 1 & 2 closed

Closed

Open

Open

100iMHz

Pins 1 & 2 closed

Closed

Closed

Open

120iMHz

Pins 1 & 2 closed

Closed

Open

Open

CPU VOLTAGE SELECTION

Voltage

JP2

3.45v

Pins 1 & 2 closed

 

4v

Pins 3 & 4 closed

 

5v

Pins 5 & 6 closed

DMA CHANNEL SELECTION

Channel

JP21

JP23

 

1

Pins 1 & 2 closed

Pins 1 & 2 closed

3

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 2 SELECTION

Setting

JP25

JP26

Used as COM2

Pins 1 & 2 closed

Pins 1 & 2 closed

Used as IR connector

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU TYPE SELECTION

Type

JP3

JP4

JP5

JP6

JP7

JP8

80486SX

Open

1 & 2

Open

1 & 2

1 & 2

Open

SL80486SX

3 & 4

3 & 4

3 & 4

1 & 2

1 & 2

Open

SL80486SX2

3 & 4

3 & 4

3 & 4

1 & 2

1 & 2

Open

80486DX

Open

1 & 2

Open

2 & 3

1 & 2

2 & 3

SL80486DX

3 & 4

3 & 4

3 & 4

2 & 3

1 & 2

2 & 3

CX486M7

5 & 6

5 & 6

5 & 6

2 & 3

1 & 2

2 & 3

TI486DX2

5 & 6

5 & 6

5 & 6

2 & 3

1 & 2

2 & 3

AM486-66/80

Open

1 & 2

Open

2 & 3

1 & 2

2 & 3

AM486-100

Open

1 & 2

Open

2 & 3

1 & 2

2 & 3

AM486+/66/80

3 & 4

3 & 4

3 & 4

2 & 3

2 & 3

2 & 3

AM486+/100/120

3 & 4

3 & 4

3 & 4

2 & 3

2 & 3

2 & 3

80486DX2

Open

1 & 2

Open

2 & 3

1 & 2

2 & 3

SL80486DX2

3 & 4

3 & 4

3 & 4

2 & 3

1 & 2

2 & 3

TI486DX4

5 & 6

5 & 6

5 & 6

2 & 3

1 & 2

2 & 3

80486DX4

3 & 4

3 & 4

3 & 4

2 & 3

1 & 2

2 & 3

P24D

3 & 4

3 & 4

3 & 4

2 & 3

2 & 3

2 & 3

P24T

3 & 4

3 & 4

3 & 4

2 & 3

2 & 3

1 & 2

CX5X86

3 & 4

3 & 4

3 & 4

2 & 3

1 & 2

2 & 3

AM5X86

3 & 4

3 & 4

3 & 4

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP9

JP10

JP11

JP12

80486SX

Open

Open

Open

Closed

SL80486SX

Closed

Open

Open

Closed

SL80486SX2

Closed

Open

Open

Closed

80486DX

Open

Open

Open

Closed

SL80486DX

Closed

Open

Open

Closed

CX486M7

Closed

Open

1 & 2

Open

TI486DX2

Closed

Open

1 & 2

Open

AM486-66/80

Open

Closed

Open

Closed

AM486-100

Open

Open

Open

Closed

AM486+/66/80

Closed

Open

1 & 3, 5 & 6

Closed

AM486+/100/120

Closed

Open

5 & 6

Closed

80486DX2

Open

Open

Open

Closed

SL80486DX2

Closed

Open

Open

Closed

TI486DX4

Closed

Open

1 & 2

Open

80486DX4

Closed

Open

Open

Closed

P24D

Closed

Open

5 & 6

Closed

P24T

Closed

Open

Open

Closed

CX5X86

Closed

Open

5 & 6

Closed

AM5X86

Closed

Open

1 & 3, 5 & 6

Closed

Note: Pins designated should be in the closed position.