UNIDENTIFIED
80286-12
|
Processor |
80286 |
|
Processor Speed |
6/8/10/12MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
1MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Reset switch |
J4 |
|
Power LED & keylock |
J2 |
Turbo LED |
JP1 |
|
External battery |
J3 |
Turbo switch |
JP2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
BIOS type select 27128 |
JP3 |
Pins 1 & 2 closed | |
|
BIOS type select 27256 |
JP3 |
Pins 2 & 3 closed | |
|
Monitor type select color |
SW1/3 |
On | |
|
Monitor type select monochrome |
SW1/3 |
Off | |
|
DRAM CONFIGURATION | |||
|
Size |
Starting address |
Bank 0 |
Bank 1 |
|
256KB |
000000H - 03FFFFH |
(18) 4164 |
(18) 4164 |
|
512KB |
000000H - 07FFFFH |
(18) 41256 |
None |
|
640KB |
000000H - 09FFFFH |
(18) 41256 |
(18) 4164 |
|
1MB (A) |
000000H - 07FFFFH |
(18) 41256 |
(18) 41256 |
|
1MB (B) |
100000H - 17FFFFH |
(18) 41256 |
(18) 41256 |
|
1MB (C) |
000000H - 09FFFFH |
(18) 41256 |
(18) 41256 |
|
1MB (D) |
100000H - 15FFFFH |
(18) 41256 |
(18) 41256 |
|
Note: The location of banks 0 & 1 are unidentified. | |||
|
DRAM SWITCH CONFIGURATION | |||
|
Size |
SW1/1 |
SW1/2 |
SW1/4 |
|
256MB |
On |
On |
Off |
|
512MB |
Off |
On |
Off |
|
640MB |
On |
Off |
Off |
|
1MB (A) |
Off |
Off |
Off |
|
1MB (B) |
Off |
Off |
Off |
|
1MB (C) |
On |
Off |
On |
|
1MB (D) |
On |
Off |
On |