SAMSUNG ELECTRONICS AMERICA, INC.
SD820
|
Processor |
80386SX |
|
Processor Speed |
25MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
8MB |
|
Cache |
64KB |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory slots (2) |
|
NPU Options |
80387SX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
J1 |
Reset switch |
J24 |
|
Serial port 2 |
J2 |
Speaker |
J25 |
|
Parallel port |
J4 |
Front panel connector |
J26 |
|
Serial port header |
J5 |
32-bit external memory card slots |
SL1 & SL2 |
|
Serial port header |
J6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Printer acknowledge type select trailing edge |
J7 |
pins 2 & 3 closed |
|
Printer acknowledge type select leading edge |
J7 |
pins 1 & 2 closed | |
|
|
Parallel printer port enabled (LPT 1) |
J8 |
pins 1 & 2 closed |
|
Parallel printer port disabled (LPT 1) |
J8 |
pins 2 & 3 closed | |
|
|
Parallel printer port disabled (LPT 2) |
J9 |
pins 2 & 3 closed |
|
Parallel printer port enabled (LPT 2) |
J9 |
pins 1 & 2 closed | |
|
|
Serial port enabled (COM 1 & COM 2) |
J10 & J11 |
pins 1 & 2 closed |
|
Serial port disabled (COM 1 & COM 2) |
J10 & J11 |
pins 2 & 3 closed | |
|
|
Monitor type select color |
J12 |
pins 2 & 3 closed |
|
Monitor type select monochrome |
J12 |
pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
J13 |
Open |
|
|
ROM size select 64K |
J14 |
pins 1 & 2 closed |
|
ROM size select 128K |
J14 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
J15 |
Open |
|
|
DRAM speed select 100 ns |
J22 |
pins 1 & 2 closed |
|
DRAM speed select 85 ns |
J22 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
J23 |
Open |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | ||||
|
Size |
J16 |
J17 |
J18 |
J19 |
|
1MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
2MB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
4MB |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
8MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
DRAM TYPE CONFIGURATION | ||
|
Type |
J20 |
J21 |
|
Static column |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
Fast page mode |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Standard RAS/CAS |
pins 1 & 2 closed |
pins 1 & 2 closed |