AMPRO COMPUTERS, INC.
LITTLE BOARD/386SX
|
Processor |
80386SX |
|
Processor Speed |
25MHz |
|
Chip Set |
Ampro |
|
Max. onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, SCSI connector, serial ports (2) |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power connector |
J1 |
SCSI interface |
J7 |
|
Serial port (COM2) |
J2 |
Floppy drive interface |
J8 |
|
Serial port (COM1) |
J3 |
IDE interface |
J11 |
|
Keyboard |
J5 |
Power J1-1 to +12V BUS |
W7 |
|
Parallel port |
J6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
SCSI controller enabled |
W1 |
Closed | |
|
SCSI controller disabled |
W1 |
Open | |
|
SCSI controller select IRQ3 |
W2 & W3 |
Closed | |
|
SCSI controller select none |
W2 & W3 |
Open | |
|
Factory configured - do not alter |
W4 |
Open | |
|
Factory configured - do not alter |
W5 |
Open | |
|
SCSI termination power enabled |
W6 |
Closed | |
|
SCSI termination power none |
W6 |
Open | |
|
Floppy clock select 16MHz |
W10 |
Closed | |
|
Floppy clock select none |
W10 |
Open | |
|
Flash EPROM programming power +12V to Byte-wide |
W16 |
Open | |
|
Flash EPROm programming power disabled |
W16 |
Closed | |
|
Watchdog timer output selection |
W17 |
Open | |
|
Watchdog timer output none |
W17 |
Closed | |
|
Factory configured - do not alter |
W18 |
Open | |
|
Floppy PCVAL selection |
W19 |
Open | |
|
Floppy PCVAL none |
W19 |
Closed | |
|
Factory configured - do not alter |
W21 |
N/A | |
|
Factory configured - do not alter |
W22 |
N/A | |
|
Power fail NMI enabled |
W23 |
Open | |
|
Power fail NMI none |
W23 |
Closed | |
|
Parallel port interrrupt option select via setup |
W24 |
Open | |
|
Parallel port interrrupt option none |
W24 |
Closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 9 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
(2) 256K x 9 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
|
EPROM CONFIGURATION (S0) | |||
|
EPROM |
W8 |
W9 |
W25 |
|
27C256 |
Open |
pins 7 & 8, 10 & 11 |
pins 1 & 2 |
|
27C512 |
Open |
pins 1 & 4, 7 & 8, 10 & 11 |
pins 1 & 2 |
|
27C010 |
Open |
pins 1 & 4, 2 & 5, 6 & 9, 7 & 8 |
pins 1 & 2 |
|
27C020 |
Open |
pins 1 & 4, 2 & 5, 6 & 9, 7 & 8, 11 & 12 |
pins 1 & 2 |
|
27C040 |
Open |
pins 1 & 4, 2 & 3, 6 & 9, 7 & 8, 11 & 12 |
pins 1 & 2 |
|
27C080 |
Closed |
pins 1 & 4, 2 & 3, 7 & 8, 11 & 12 |
pins 1 & 2 |
|
62256 |
Open |
pins 4 & 7, 5 & 8, 10 & 11 |
pins 1 & 2 or 2 & 3 |
|
628128 |
Open |
pins 1 & 2, 4 & 7, 5 & 8, 10 & 11 |
pins 1 & 2 or 2 & 3 |
|
uPD434000 |
Open |
pins 1 & 2, 3 & 6, 4 & 7, 5 & 8, 11 & 12 |
pins 1 & 2 or 2 & 3 |
|
28F256 |
Open |
pins 2 & 5, 6 & 9, 7 & 8 |
pins 1 & 2 |
|
28F512 |
Open |
pins 1 & 4, 2 & 5, 6 & 9, 7 & 8 |
pins 1 & 2 |
|
28F010 |
Open |
pins 1 & 4, 2 & 5, 6 & 9, 7 & 8 |
pins 1 & 2 |
|
28F020 |
Open |
pins 1 & 4, 2 & 5, 6 & 9, 7 & 8, 11 & 12 |
pins 1 & 2 |
|
Note:Pins designated should be in the closed position. | |||
|
EPROM/FLASH EPROM CONFIGURATION (S1 & S2) | ||||
|
EPROM |
W12 |
W13 |
W14 |
W15 |
|
128KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |