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SBX/386

ZF MICROSYSTEMS, INC.

SBX/386

Processor

80386SX

Processor Speed

33MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

16MB

Maximum Video Memory

None

Cache

None

BIOS

Unidentified

Dimensions

254mm x 114mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port, PC104 connectors (2), solid state disk

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

Monitor power input connector

J1

Serial port 1

CN2

IDE interface LED

J2

Parallel port

CN3

Speaker

J3

Serial port 2

CN4

External battery

J4

Floppy drive interface

CN5

Keylock

J7

IDE interface

CN6

Power connector

J31

PC104 connector

CN7

Reset switch

J39

PC104 connector

CN8

Expansion socket

JP1

Solid state disk

CN9

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J9

Unidentified

BIOS disabled

J10

Open

 

BIOS enabled

J10

Closed

 

VGA IRQ select IRQ9

J42

Pins 2 & 3 closed

 

VGA IRQ select IRQ7

J42

Pins 1 & 2 closed

SanDisk master/slave select master

J44

Closed

 

SanDisk master/slave select slave

J44

Open

Monitor type select non interlaced

J45

Open

 

Monitor type select interlaced

J45

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 1M x 9

None

4MB

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

None

10MB

(2) 4M x 9

(2) 1M x 9

16MB

(2) 4M x 9

(2) 4M x 9

Note: Board also accepts x 8 SIMMs.

EXPANSION SOCKET SELECTION

Type

Device

Size

J37

EPROM

27C256

32KB

6 & 7, 8 & 9

EPROM

27C512

64KB

3 & 7, 8 & 9

EPROM

27C010

128KB

2 & 6, 3 & 7, 4 & 5, 8 & 9

Flash BIOS

28F256A

32KB

1 & 2, 4 & 5, 8 & 9

Flash BIOS

28F512

64KB

1 & 2, 4 & 5, 3 & 7 8 & 9

Flash BIOS

28F010

128KB

1 & 2, 4 & 5, 3 & 7 8 & 9

Flash BIOS

AM29F020

128KB

4 & 5, 3 & 7 8 & 9

NVRAM

DS1225Y

8KB

5 & 9

NVRAM

DS1230

32KB

5 & 9, 7 & 8

NVRAM

DS1235Y

32KB

5 & 9, 7 & 8

NVRAM

DS1630

32KB

5 & 9, 7 & 8

NVRAM

DS1245Y

128KB

3 & 4, 5 & 9, 7 & 8

NVRAM

DS1645Y

128KB

3 & 7, 4 & 5, 8 & 9

NVRAM

BQ4010Y

8KB

5 & 9

NVRAM

BQ4011Y

32KB

5 & 9, 7 & 8

NVRAM

BQ4013Y

128KB

3 & 4, 5 & 9, 7 & 8

Note: Pins designated should be in the closed position.

BIOS SELECTION

Size

Address

J11

J12

J14

Disabled

N/A

Closed

Closed

Closed

 

16KB

DC000h

Closed

Closed

Open

 

32KB

D8000h

Open

Open

Closed

 

64KB

D0000h

Closed

Open

Open

 

80KB

CC000h

Open

Closed

Closed

 

96KB

C8000h

Open

Closed

Open

 

112KB

C4000h

Open

Open

Closed

 

128KB

C0000h

Open

Open

Open

WATCHDOG TIMER SELECTION

Type

J18

J19

J20

Watchdog timer

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Power fail

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed