UNIDENTIFIED
80286-12 TURBO
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
Unknown |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
243mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J2 |
Reset switch |
JP13 |
|
Turbo LED |
JP11 |
Speaker |
JP14 |
|
Turbo switch |
JP12 |
Power LED & keylock |
JP15 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
J8 |
N/A | |
|
Factory configured - do not alter |
J9 |
N/A | |
|
NPU mode select synchronous with CPU |
J10 |
pins 2 & 3 closed | |
|
NPU mode select asynchronous with CPU |
J10 |
pins 1 & 2 closed | |
|
Monitor type select color |
JP5 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
JP5 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
P-0 |
Bank 1 |
P-1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
NONE |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 4164 |
NONE |
NONE |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
NONE |
|
4MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
|
Notes:Locations of Bank 0, Bank 1, P0, & P1 unidentified. Bank 0 consists of U26, U27, U31, & U32. Bank 1 consists of U35, U36, U37, & U38. P-0 consists of U41 & U42. P-1 consists of U43 & U44. | ||||||