MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
MICROFRAME 486P
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50/66(internal)MHz |
|
Chip Set |
C & T PEAK DM |
|
Max. Onboard DRAM |
32MB |
|
Cache |
128KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Bus mouse connector |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Auxiliary keyboard |
J15 |
|
IDE interface LED |
J3 |
Bus mouse |
J19 |
|
Front panel composite cable |
J6 |
Speaker |
J27 |
|
Ready LED |
J7 |
Power LED & keylock |
J44 |
|
Reset switch |
J8 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
CMOS memory normal operation |
J2 |
Open | |
|
CMOS memory clear |
J2 |
Closed | |
|
Factory configured - do not alter |
J9 |
Open | |
|
Factory configured - do not alter |
J10 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
J11 |
Closed | |
|
Factory configured - do not alter |
J17 |
pins 2 & 3 closed | |
|
Monitor type select color |
J18 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
J18 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
J20 |
pins 1 & 2 closed | |
|
Bus mouse enabled |
J21 |
Closed | |
|
Bus mouse disabled |
J21 |
Open | |
|
Factory configured - do not alter |
J22 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
J23 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
J24 |
Open | |
|
Cache enabled |
J32 |
pins 1 & 2 closed | |
|
Cache disabled |
J32 |
pins 2 & 3 closed | |
|
DMA signal select active high |
J35 |
pins 1 & 2 closed | |
|
DMA signal select active low |
J35 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
2MB |
(1) 512K x 36 |
NONE |
NONE |
NONE |
|
3MB |
(1) 512K x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
6MB |
(1) 512K x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
7MB |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
8MB |
(1) 2M x 36 |
NONE |
NONE |
NONE |
|
9MB |
(1) 2M x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
10MB |
(1) 2M x 36 |
(1) 512K x 36 |
NONE |
NONE |
|
11MB |
(1) 2M x 36 |
(1) 512K x 36 |
(1) 256K x 36 |
NONE |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
13MB |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
14MB |
(1) 2M x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
NONE |
|
15MB |
(1) 2M x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
17MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 256K x 36 |
NONE |
|
18MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 512K x 36 |
NONE |
|
19MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 512K x 36 |
(1) 256K x 36 |
|
20MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 1M x 36 |
NONE |
|
21MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
22MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
|
DRAM CONFIGURATION (CONT) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
|
25MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 256K x 36 |
|
26MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 512K x 36 |
|
28MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
128KB |
(4) 32K x 8 |
(1) 32K x 8 |
|
CPU TYPE CONFIGURATION | |||
|
Type |
J12 |
J13 |
J14 |
|
80486SX |
Open |
pins 2 & 3 closed |
Open |
|
80487SX |
Closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
80486DX |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DX2 |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |