BABY 286MB Ver. 1.20 Motherboard Settings and Configuration
INFORMTECH INTERNATIONAL, INC.
BABY 286MB Ver. 1.20
Processor | 80286 |
Processor Speed | 5/6/8/10MHz |
Chip Set | C & T |
Max. Onboard DRAM | 1MB |
SRAM Cache | None |
BIOS | Unidentified |
Dimensions | 330mm x 218mm |
I/O Options | Auxilliary keyboard connector |
NPU Options | 80287 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
| » | Power good signal detect from power supply | J14 | pins 2 & 3 closed |
Power good signal detect from board | J14 | pins 1 & 2 closed | |
BIOS type select 27256 | J15 | pins 1 & 2 closed | |
BIOS type select 27128 | J15 | pins 2 & 3 closed | |
| » | Factory configured - do not alter | SW1/Switch 5 | closed |
| » | Monitor type select monochrome | SW1/Switch 6 | open |
Monitor type select color | SW1/Switch 6 | closed | |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | P1 | Power LED & keylock | P4 |
Turbo LED | P2 | Auxilliary keyboard | P6 |
Reset switch | P3 | External battery | P8 |
DRAM CONFIGURATION | |||||
Size | Bank 0 | Bank 1 | SW1/Switch 3 | SW2/Switch 4 | |
256KB | (18) 4164 | (18) 4164 | closed | open | |
512KB | (18) 41256 | NONE | open | open | |
| » | 640KB | (18) 41256 | (18) 4164 | closed | closed |
1024KB | (18) 41256 | (18) 41256 | open | closed | |
NPU SPEED CONFIGUARATION | |||
NPU Speed | Clock Rate | J7 | J8 |
80287-12 | 8/12MHz | open | pins 1 & 2 closed |
80287-12 | 6.7/10MHz | open | pins 1 & 2 closed |
80287-10 | 6.7/10MHz | open | pins 1 & 2 closed |
80287-10 | 5.3/8MHz | closed | pins 2 & 3 closed |
80287-8 | 5.3/8MHz | closed | pins 2 & 3 closed |
80287-8 | 4.4/6MHz | closed | pins 2 & 3 closed |
80287-6 | 4.4/6MHz | closed | pins 2 & 3 closed |
80287-6 | 2.6/4MHz | closed | pins 1 & 2 closed |
BATTERY TYPE CONFIGUARATION | |||
Battery | J12 | J13 | |
| » | Internal lithium (2 x 3VDC) | pins 1 & 2 closed | closed |
External lithium (6VDC) | open | closed | |
External alkaline (6VDC) | open | open | |
SYSTEM CLOCK WAIT STATE CONFIGURATION | |||||
Speed | Wait State | J2 | J5 | J8 | J11 |
10MHz | 0 | closed | pins 1 & 2 | closed | pins 1 & 2 |
10MHz | 1 | open | pins 1 & 2 | open | pins 1 & 2 |
12MHz | 0 | closed | pins 2 & 3 | closed | pins 2 & 3 |
12MHz | 1 | open | pins 2 & 3 | open | pins 2 & 3 |
Note:Pins designated should be in the closed position. | |||||
I/O MODE WAIT STATE CONFIGURATION | ||||||
Wait States | 8-BIT I/O | 8-BIT Memory | 16-BIT I/O | 16-BIT Memory | SW1/ Switch 1 | SW1/ Switch 2 |
0 | 0 (6) | 0 (6) | 0 (3) | 0 (3) | closed | closed |
1 | 0 (6) | 0 (6) | 0 (3) | 1 (4) | closed | open |
2 | 1 (7) | 1 (7) | 1 (4) | 1 (4) | open | closed |
3 | 2 (8) | 2 (8) | 1 (4) | 2 (5) | open | open |
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