TOP MICROSYSTEMS, INC.
JC-386SX
Processor |
80386SX |
Processor Speed |
16/20MHz |
Chip Set |
C & T NEAT |
Max. Onboard DRAM |
8MB |
Cache |
None |
BIOS |
Phoenix |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Speaker |
J1 |
Reset switch |
J4 |
Turbo LED |
J2 |
External battery |
J5 |
Power LED & keylock |
J3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Monitor type select color (CGA only) |
JP1 |
Closed |
Monitor type select monochrome (any other) |
JP1 |
Open | |
» |
CMOS memory normal operation |
JP2 |
pins 2 & 3 closed |
CMOS memory clear |
JP2 |
pins 1 & 2 closed |
DRAM CONFIGURATION | ||||||
Size |
Bank 0 |
P0 |
Bank 1 |
P1 |
Bank 2 |
Bank 3 |
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
1.5MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
NONE |
2MB |
(4) 441000 |
(2) 411000 |
NONE |
NONE |
NONE |
NONE |
2MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
(2) 256K x 9 |
2.5MB |
(4) 441000 |
(2) 411000 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
3MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 1M x 9 |
NONE |
3MB |
(4) 411000 |
(2) 411000 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
NONE |
4MB |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
NONE |
NONE |
4.5MB |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
(2) 256K x 9 |
NONE |
5MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 1M x 9 |
(2) 1M x 9 |
5MB |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
(2) 256K x 9 |
(2) 256K x 9 |
6MB |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
(2) 1M x 9 |
NONE |
8MB |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
(2) 1M x 9 |
(2) 1M x 9 |