TANDON CORPORATION
2MB MEMORY OPTION BOARD
|
Card Type |
Memory card |
|
Chipset/Controller |
N/A |
|
I/O Options |
N/A |
|
Maximum DRAM |
2MB |
|
DRAM SIZE SELECTION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(18) 256K x 1 |
NONE |
NONE |
NONE |
|
1024KB |
(18) 256K x 1 |
(18) 256K x 1 |
NONE |
NONE |
|
1536KB |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
NONE |
|
2048KB |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
|
DRAM ADDRESS SELECTION | ||||||
|
System RAM |
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
|
512-640KB |
100000-2FFFFFh |
Off |
Off |
Off |
On |
Off |
|
1024KB |
180000-37FFFFh |
Off |
Off |
Off |
On |
On |
|
2560-2688KB |
300000-4FFFFFh |
Off |
Off |
On |
On |
Off |
|
3072KB |
380000-57FFFFh |
Off |
Off |
On |
On |
On |
|
4608-4736KB |
500000-6FFFFFh |
Off |
On |
Off |
On |
Off |
|
5120KB |
580000-77FFFFh |
Off |
On |
Off |
On |
On |
|
6656-6784KB |
700000-8FFFFFh |
Off |
On |
On |
On |
Off |
|
7168KB |
780000-97FFFFh |
Off |
On |
On |
On |
On |
|
8704-8832KB |
900000-AFFFFFh |
On |
Off |
Off |
On |
Off |
|
9216KB |
980000-B7FFFFh |
On |
Off |
Off |
On |
On |
|
10752-10880KB |
B00000-CFFFFFh |
On |
Off |
On |
On |
Off |
|
11264KB |
B80000-D7FFFFh |
On |
On |
On |
On |
On |
|
12800-12928KB |
D00000-EFFFFFh |
On |
On |
Off |
On |
Off |
|
13312KB |
D80000-F7FFFFh |
On |
On |
Off |
On |
On |
|
14848-14976KB |
F00000-FDFFFFh |
On |
On |
On |
On |
Off |
|
15360KB |
F80000-FDFFFFh |
On |
On |
On |
On |
On |
