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# RADISYS CORPORATION
EXPLR2
Processor 80386EX
Processor Speed 33/40/50/66MHz
Chip Set Unidentified
Video Chip Set Cirrus Logic
Maximum Onboard 32MB
Memory
Maximum Video 512KB
Memory
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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| LCD connector | CN1 | PC/104 connector | J4A |
|-------------------+----------+------------------+----------|
| IDE interface | CN2 | Parallel port | J8 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN6 | Serial port 2 | J9 |
| interface | | | |
|-------------------+----------+------------------+----------|
| 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| JP2 |Unidentified|
| |page) | | |
|-+---------------------------------------+-----+------------|
| |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 |JP8C | Open |
| |disabled | | |
|-+---------------------------------------+-----+------------|
| |Bottom half (lower 256KB) of FBD |JP8C | Closed |
| |enabled | | |
|-+---------------------------------------+-----+------------|
|»|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 |JP12 | Open |
| |disabled | | |
|-+---------------------------------------+-----+------------|
| |Boot option with keyboard controller |JP12 | Closed |
| |enabled | | |
|-+---------------------------------------+-----+------------|
| |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 |SW1/2| Off |
| |enabled | | |
|-+---------------------------------------+-----+------------|
| |Internal real time clock megacell |SW1/2| On |
| |disabled | | |
|-+---------------------------------------+-----+------------|
|»|Internal keyboard & mouse controller |SW1/3| Off |
| |megacell enabled | | |
|-+---------------------------------------+-----+------------|
| |Internal keyboard & mouse controller |SW1/3| On |
| |megacell disabled | | |
|-+---------------------------------------+-----+------------|
|»|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 |SW1/6| Off |
| |enabled | | |
|-+---------------------------------------+-----+------------|
| |DIO [7:4] inputs enabled |SW1/6| On |
|-+---------------------------------------+-----+------------|
|»|Initial level of digital output select |SW1/7| Off |
| |initialize to 0 | | |
|-+---------------------------------------+-----+------------|
| |Initial level of digital output select |SW1/7| On |
| |initialize to 1 | | |
|-+---------------------------------------+-----+------------|
|»|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 |
+------------------------------------------------------------+