CSS LABORATORIES, INC.
Little Max 386SX
|
Processor |
80386SX |
|
Processor Speed |
16/20MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
16MB |
|
SRAM Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
334mm x 127mm |
|
I/O Options |
Auxiliary keyboard, IDE interface, floppy drive interface, parallel port, serial ports(2) |
|
NPU Options |
80387SX |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J3 |
Hard drive access LED |
J40 |
|
Power LED & keylock |
J4 |
IDE interface LED |
LED |
|
Turbo switch |
J6 |
Floppy drive interface |
PJ1 |
|
Auxiliary keyboard |
J7A |
Parallel port |
PJ2 |
|
Reset switch |
J11 pins 1 & 2 |
Serial port 1 |
PJ3 |
|
Turbo LED |
J11 pins 3 & 4 |
Serial port 2 |
PJ4 |
|
Front panel switches & LEDs |
J39 |
IDE interface |
PJ5 |
|
USER CONFIGURABLE SETTINGS |
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|
Function |
Jumper |
Position |
|
|
|
Floppy drive interface enabled |
FDDEN |
pins 2 & 3 closed |
|
|
Floppy drive interface disabled |
FDDEN |
pins 1 & 2 closed |
|
|
IDE interface enabled |
IDEEN |
pins 2 & 3 closed |
|
|
IDE interface disabled |
IDEEN |
pins 1 & 2 closed |
|
|
Factory configured - do not alter |
J2 |
open |
|
|
Monitor type select color |
J8 |
pins 2 & 3 closed |
|
|
Monitor type select monochrome |
J8 |
pins 1 & 2 closed |
|
|
BIOS type select 27256 |
J9 |
pins 1 & 2 closed |
|
|
BIOS type select 27128 |
J9 |
pins 2 & 3 closed |
|
|
CPU speed select 16MHz |
J10 |
closed |
|
|
CPU speed select 20MHz |
J10 |
open |
|
|
Pipeline mode enabled |
J1 W1 W2 |
pins 2 & 3 closed pins 1 & 2 closed pins 2 & 3 closed |
|
|
Pipeline mode disabled |
J1 W1 W2 |
pins 1 & 2 closed pins 2 & 3 closed pins 1 & 2 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 |
NONE |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
|
SERIAL PORT 1 CONFIGURATION |
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|
COM |
IRQ Interrupt |
I/O Address |
Jumper PJ6 |
S0 |
S1 |
|
COM 2 |
IRQ3 |
2F8h |
pins 1 & 3 |
pins 1 & 2 |
pins 2 & 3 |
|
COM 1 |
IRQ4 |
3F8h |
pins 1 & 2 |
pins 2 & 3 |
pins 2 & 3 |
|
Disabled |
N/A |
N/A |
N/A |
pins 1 & 2 |
pins 1 & 2 |
|
SERIAL PORT 2 CONFIGURATION |
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|
COM |
IRQ Interrupt |
I/O Address |
Jumper PJ6 |
S2 |
S3 |
|
COM 1 |
IRQ4 |
3F8h |
pins 2 & 4 |
pins 1 & 2 |
pins 2 & 3 |
|
COM 2 |
IRQ3 |
2F8h |
pins 3 & 4 |
pins 2 & 3 |
pins 2 & 3 |
|
Disabled |
N/A |
N/A |
N/A |
pins 1 & 2 |
pins 1 & 2 |
|
PARALLEL PORT 1 (PJ2) CONFIGURATION |
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|
LPT |
IRQ Interrupt |
I/O Address |
P0 |
P1 |
PRT |
|
LPT 1 |
IRQ7 |
3F8h |
pins 1 & 2 |
pins 2 & 3 |
pins 2 & 3 |
|
LPT 2 |
IRQ5 |
2F8h |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
|
LPT 3 |
IRQ7 |
3BCh |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
|
Disabled |
N/A |
N/A |
pins 1 & 2 |
pins 1 & 2 |
N/A |