DIAMOND FLOWER, INC.
486SX-16/20/25UCE
|
Processor |
80486SX/80487SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
UMC |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 220mm |
|
I/O OPTIONS |
32-bit external memory card slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Keyboard connector |
J1 |
Turbo switch |
J8 and J17 |
|
Speaker |
J2 |
Power LED & Keylock |
J9 |
|
Turbo LED |
J3 |
External battery |
J18 |
|
Reset switch |
J5 and J14 |
32-bit external memory card |
S1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
J4 |
open | |
|
Factory configured - do not alter |
J6 |
pins 2 & 3 closed | |
|
CPU speed select 16/25MHz |
J7 |
open | |
|
CPU speed select 20MHz |
J7 |
closed | |
|
Battery select internal |
J16 |
pins 2 & 3 closed | |
|
Battery select external |
J16 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
J19 |
open | |
|
Monitor type select color |
J20 |
closed | |
|
Monitor type select monochrome |
J20 |
open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
SRAM CONFIGURATION | |||
|
Size |
Cache SRAM |
Location |
TAG |
|
64KB |
(8) 8K x 8 |
Banks 0 & 1 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
Bank 0 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
Banks 0 & 1 |
(1) 32K x 8 |
|
SRAM JUMPER CONFIGURATION | |||
|
Jumper |
64KB |
128KB |
256KB |
|
W1 |
open |
closed |
closed |
|
W2 |
open |
closed |
closed |
|
W3 |
closed |
closed |
closed |
|
W4 |
open |
open |
closed |
|
W5 |
open |
open |
closed |
|
J10 |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
J11 |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
J12 |
open |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
J13 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
J15 |
closed |
closed |
closed |