LITTLE BOARD/P5E Motherboard Settings and Configuration

Device Type

Single board computer

Processor

Pentium

Processor Speed

100/133/166MHz

Chip Set

Unidentified

Video Chip Set

Chips and Technology

Maximum Onboard Memory

128MB

Maximum Video Memory

2MB

Cache

256KB

BIOS

Ampro

Dimensions

203mm x 146mm

I/O Options

Ethernet 10BaseT connector, AUI connector, floppy drive interface, IDE interface, SCSI interface, parallel port, serial ports (2), VGA interface, PC/104 connectors (2)

CONNECTIONS

Purpose

Location

Purpose

Location

Flat panel connector

J3

Serial port 3 & 4

J13

VEE bias supply connector

J4

Floppy drive interface

J14

VGA interface

J5

Parallel port

J15

Video external overlay connector

J6

Keyboard connector

J16

Ethernet 10BaseT connector

J7

IDE extension connector

J17

AUI connector

J8

CPU fan power

J20

SCSI interface

J9

PCI bus connector

J21

Power connector

J10

PC/104 connector

P1

Serial port 1 & 2

J11

PC/104 connector

P2

IDE interface

J12

USER CONFIGURABLE SETTINGS

Function

Label

Position

Vee polarity select negative

W1

Pins 1 & 2 closed

Vee polarity select positive

W1

Pins 2 & 3 closed

SCSI termination enabled

W3

Closed

SCSI termination disabled

W3

Open

+5v for external serial port 4 enabled

W8

Closed

+5v for external serial port 4 disabled

W8

Open

BIOS chip select swap enabled

W9

Closed

Byte wide chip select swap enabled

W9

Open

»

Factory configured - do not alter

W12

Open

BIOS 12v programming power enabled

W13

Closed

BIOS 12v programming power disabled

W13

Open

»

Factory configured - do not alter

W16

Open

SCSI interface enabled

W17

Open

SCSI interface disabled

W17

Closed

Backlight enable signal select optional

W20

Pins 1 & 2 closed

Backlight enable signal select standard

W20

Pins 2 & 3 closed

Byte wide write enabled

W22

Closed

Byte wide write disabled

W22

Open

»

Data valid select high to low

W23

Pins 1 & 2 closed

Data valid select low to high

W23

Pins 2 & 3 closed

SIMM CONFIGURATION

Size

Bank 0

8MB

(2) 1M x 36

16MB

(2) 2M x 36

32MB

(2) 4M x 36

64MB

(2) 8M x 36

128MB

(2) 16M x 36

CACHE CONFIGURATION

Note: The location of the cache is unidentified.

VIDEO MEMORY CONFIGURATION

Note: The location of the video memory is unidentified.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

W10

W11

W14

100MHz

66MHz

1.5x

Closed

Closed

2 & 3

133MHz

66MHz

2x

Open

Closed

2 & 3

166MHz

66MHz

2.5x

Open

Open

2 & 3

Note: Pins designated should be in the closed position.

DMA CHANNEL SELECTION

Channel

W18

W19

1

Pins 1 & 2 closed

Pins 1 & 2 closed

3

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 3 ADDRESS SELECTION

Setting

W4

W6

IRQ4, shared with serial 1

Pins 1 & 2 closed

Open

Serial 3, IRQ12/serial 1 IRQ4

Pins 2 & 3 closed

Closed

SERIAL PORT 4 ADDRESS SELECTION

Setting

W5

W7

IRQ3, shared with serial 2

Pins 1 & 2 closed

Open

Serial 4, IRQ10/serial 2 IRQ3

Pins 2 & 3 closed

Closed

WATCHDOG TIMER SELECTION

Setting

W24

IOCHK

Pins 1 & 2 closed

Reset

Pins 2 & 3 closed

Disabled

Open

EPROM SELECTION

Type

W2

W15

W21

27C64

Open

8 & 9, 14 & 15

2 & 3

27C128

Open

8 & 9, 14 & 15

2 & 3

28C64

Open

8 & 9, 14 & 15

2 & 3

27C256

Open

9 & 12, 14 & 15

1 & 2

27C512

Open

9 & 12, 10 & 11, 14 & 15

1 & 2

27C010

Open

2 & 5, 7 & 8, 9 & 12, 10 & 11

1 & 2

27C020

Open

2 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

27C040

Open

2 & 5, 4 & 7, 9 & 12, 10 & 11, 13 & 14

1 & 2

27C080

Open

4 & 7, 5 & 6, 9 & 12, 10 & 11, 13 & 14

1 & 2

Note: Pins designated should be in the closed position.

FLASH EPROM SELECTION

Type

W2

W15

W21

29C256

Open

8 & 11, 9 & 12, 14 & 15

1 & 2

28C256

Open

8 & 9, 11 & 12, 14 & 15

1 & 2

29F512

Open

4 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

29F010

Open

4 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

29F020

Open

4 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

29F040

Open

4 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

28F256

Open

2 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

28F512

Open

2 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

28F010

Open

2 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

28F020

Open

2 & 5, 7 & 8, 9 & 12, 10 & 11, 13 & 14

1 & 2

Note: Pins designated should be in the closed position.

SRAM SELECTION

Type

W2

W15

W21

43256

Closed

7 & 10, 8 & 9, 11 & 12, 14 & 15

2 & 3

628128

Closed

7 & 10, 8 & 9, 11 & 12, 14 & 15

2 & 3

DS1235Y

Closed

7 & 10, 8 & 9, 11 & 12, 14 & 15

2 & 3

BQ4013Y

Closed

7 & 10, 8 & 9, 11 & 12, 14 & 15

2 & 3

628512

Closed

4 & 5, 7 & 10, 8 & 9, 11 & 12, 13 & 14

2 & 3

DS1650Y

Closed

4 & 5, 7 & 10, 8 & 9, 11 & 12, 13 & 14

2 & 3

BQ4015Y

Closed

4 & 5, 7 & 10, 8 & 9, 11 & 12, 13 & 14

2 & 3

Note: Pins designated should be in the closed position.