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 |