HEDAKA
HED-986 (DIP VERSION)
|
Processor |
80286 |
|
Processor Speed |
12/16/20MHz |
|
Chip Set |
Hedaka |
|
Max. Onboard DRAM |
2MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
CN1 |
Auxiliary keyboard |
CN7 |
|
Turbo switch |
CN3 |
Power LED & keylock |
CN9 |
|
Speaker |
CN4 |
Speed display |
CN12 |
|
Reset switch |
CN5 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP8 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
JP8 |
pins 1 & 2 closed | |
|
NPU clock select internal oscillator |
JP15 |
pins 2 & 3 closed | |
|
NPU clock select external oscillator |
JP15 |
pins 1 & 2 closed | |
|
NPU speed select OSC/1 |
JP14 |
pins 1 & 2 closed | |
|
NPU speed select OSC/3 |
JP14 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
NONE |
NONE |
NONE |
|
1MB |
(4) 44256 |
(4) 44256 |
NONE |
NONE |
|
1.5MB |
(4) 44256 |
(4) 44256 |
(4) 44256 |
NONE |
|
2MB |
(4) 44256 |
(4) 44256 |
(4) 44256 |
(4) 44256 |
|
DRAM PARITY CONFIGURATION | ||||
|
Size |
P-0 |
P-1 |
P-2 |
P-3 |
|
512KB |
(2) 41256 |
NONE |
NONE |
NONE |
|
1MB |
(2) 41256 |
(2) 41256 |
NONE |
NONE |
|
1.5MB |
(2) 41256 |
(2) 41256 |
(2) 41256 |
NONE |
|
2MB |
(2) 41256 |
(2) 41256 |
(2) 41256 |
(2) 41256 |