LEADING EDGE PRODUCTS, INC.
MODEL D3/SX (VERSION 1)
|
Processor |
80386SX |
|
Processor Speed |
16MHz |
|
Chip Set |
Zymos |
|
Max. onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
Leading Edge |
|
Dimensions |
325mm x 308mm |
|
I/O Options |
Floppy drive interface, mouse port, parallel port, serial ports (2) |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Mouse port |
CN1 |
Parallel port |
CN4 |
|
Serial port 2 |
CN2 |
Floppy drive interface |
CN5 |
|
Serial port 1 |
CN3 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Floppy drive interface enabled |
J19 |
pins 2 & 3 closed | |
|
Floppy drive interface disabled |
J19 |
pins 1 & 2 closed | |
|
Monitor type select color |
J26 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
J26 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
J22 |
J23 |
|
512KB |
(2) 256K x 9 |
None |
pins 2 & 3 |
pins 2 & 3 |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
pins 1 & 2 |
pins 2 & 3 |
|
2MB |
(2) 1M x 9 |
NONE |
pins 2 & 3 |
pins 1 & 2 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
pins 1 & 2 |
pins 1 & 2 |
|
Note:Pins designated should be in the closed position. | ||||
|
PARALLEL PORT CONFIGURATION | ||||
|
IRQ |
ADDRESS |
J17 |
J20 | |
|
7 |
378h |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
5 |
378h |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
7 |
278h |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
5 |
278h |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
Disabled |
Disabled |
Open |
Open | |
|
SERIAL PORT CONFIGURATION | ||||
|
Port 1 |
Port 2 |
J16 |
J18 | |
|
COM1 |
COM2 |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
COM1 |
COM4 |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
COM1 |
Disabled |
Open |
pins 1 & 2 closed | |
|
COM3 |
COM2 |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
Disabled |
COM2 |
pins 1 & 2 closed |
Open | |
|
COM3 |
COM4 |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
Disabled |
COM4 |
pins 2 & 3 closed |
Open | |
|
Disabled |
Disabled |
Open |
Open | |
|
MOUSE PORT INTERRUPTS | |||||
|
IRQ |
J11 |
J12 |
J13 |
J14 | |
|
IRQ9 |
Closed |
Open |
Open |
Open | |
|
IRQ3 |
Open |
Closed |
Open |
Open | |
|
IRQ4 |
Open |
Open |
Closed |
Open | |
|
IRQ5 |
Open |
Open |
Open |
Closed | |