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EXPLR2

RADISYS CORPORATION

EXPLR2

Processor

80386EX

Processor Speed

33/40/50/66MHz

Chip Set

Unidentified

Video Chip Set

Cirrus Logic

Maximum Onboard Memory

32MB

Maximum Video Memory

512KB

Cache

None

BIOS

Phoenix

Dimensions

254mm x 254mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, PC/104 connectors (2), flat panel connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

LCD connector

CN1

PC/104 connector

J4A

IDE interface

CN2

Parallel port

J8

Floppy drive interface

CN6

Serial port 2

J9

PS/2 mouse port

J2

Serial port 1

J10

VGA port

J3

PC card carrier

S1

PC/104 connector

J4

Reset switch

S2

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

RFA access select (linear memory/mapped page)

JP2

Unidentified

 

RFA WS select (R380 WEFLSH/386EXWR)

JP3

Unidentified

Factory configured - do not alter

JP4

Open

 

CPU speed 33/40/50/66MHz

JP5

Unidentified

 

BIOS CS select (R380EX/Intel386EX)

JP6

Unidentified

Flash BIOS boot block disabled

JP7

Open

 

Flash BIOS boot block enabled

JP7

Closed

Flash BIOS normal operation

JP8A

Open

 

Flash BIOS recovery mode

JP8A

Closed

Manufacturing loop at boot disabled

JP8B

Open

 

Manufacturing loop at boot enabled

JP8B

Closed

Bottom half (lower 256KB) of FBD disabled

JP8C

Open

 

Bottom half (lower 256KB) of FBD enabled

JP8C

Closed

Flash BIOS write protect disabled

JP8D

Open

 

Flash BIOS write protect enabled

JP8D

Closed

 

VCC select (3.3v/5v)

JP9

Unidentified

 

Serial port 2 COM select (IRQ3/IRQ5)

JP10

Unidentified

 

VPP select (12v/5v)

JP11

Unidentified

Boot option with keyboard controller disabled

JP12

Open

 

Boot option with keyboard controller enabled

JP12

Closed

 

Serial port 1 COM select (IRQ4/IRQ9)

JP13

Unidentified

Post loop disabled

JP14

Open

 

Post loop enabled

JP14

Closed

8-bit operation disabled

JP15

Closed

 

8-bit operation enabled

JP15

Open

R380 voltage select 5v

SW1/1

On

 

R380 voltage select 3v/3.3v

SW1/1

Off

Internal real time clock megacell enabled

SW1/2

Off

 

Internal real time clock megacell disabled

SW1/2

On

Internal keyboard & mouse controller megacell enabled

SW1/3

Off

 

Internal keyboard & mouse controller megacell disabled

SW1/3

On

RAS_BS# enabled

SW1/4

Off

 

MA11 enabled

SW1/4

On

CS_USR [3:0] outputs enabled

SW1/5

Off

 

DIO [3:0] inputs enabled

SW1/5

On

ACTIVITY#/WE_BIOS#/WE_AP#/QDACKB enabled

SW1/6

Off

 

DIO [7:4] inputs enabled

SW1/6

On

Initial level of digital output select initialize to 0

SW1/7

Off

 

Initial level of digital output select initialize to 1

SW1/7

On

User definable bit select 0

SW1/8

Off

 

User definable bit select 1

SW1/8

On

SIMM CONFIGURATION

Size

Bank 0

2MB

(1) 512K x 36

4MB

(1) 1M x 36

8MB

(1) 2M x 36

16MB

(1) 4M x 36

32MB

(1) 8M x 36

VIDEO MEMORY CONFIGURATION

Note: 512KB video memory is factory installed and is not configurable.

FLAT PANEL SELECTION

Setting

JP1/A

JP1/B

JP1/C

0-bit disabled

Open

Open

Open

 

0-bit enabled

Closed

Closed

Closed