EISA TECH CORPORATION
SINGLE-CHIP 286
|
Processor |
80286 |
|
Processor Speed |
12/16MHz |
|
Chip Set |
Acer |
|
Max. Onboard DRAM |
5MB |
|
Cache |
None |
|
BIOS |
AMI/Award |
|
Dimensions |
230mm x 215mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Turbo switch |
J2 pins 10 & 12 & 14 |
|
Keylock |
J2 pins 1 & 3 |
Reset switch |
J2 pins 18 & 20 |
|
Turbo LED |
J2 pins 4 & 6 |
Speaker |
J2 pins 13 & 15 & 17 & 19 |
|
Power LED |
J2 pins 5 & 7 & 9 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP4 |
pins 3 & 4 closed | |
|
Monitor type select monochrome |
JP4 |
pins 1 & 2 closed | |
|
NPX clock mode select CPU CLK/3 |
JP11 |
Closed | |
|
NPX clock mode select CPU CLK/1 |
JP11 |
Open | |
|
DRAM CONFIGURATION | ||||||
|
Size |
U25 - U28 |
U17 & U19 |
U33 - U36 |
U16 & U18 |
Bank 0 |
Bank 1 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
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 |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(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 |
|
5MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 1M x 9 |
(2) 1M x 9 |
|
Note:Either DIP (U17,U19,U25,U26,U27,U28) or SIMM may be used as Bank 0. | ||||||
|
DRAM JUMPER CONFIGURATION | ||||||
|
Size |
JP5 |
JP6 |
JP7 |
JP8 |
JP9 |
JP10 |
|
512KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
512KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
1MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
2MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
2MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
4MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
5MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
Note:Pins designated should be in the closed position. | ||||||