256K MEMORY BOARD (REV. C) Memory card Settings and Configuration

APPARAT, INC.

256K MEMORY BOARD (REV. C)

Card Type
Memory
Maximum Onboard Memory
256KB DRAM
I/O Options
N/A
Data Bus
8-bit ISA

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
64KB
(9) 64K x 1
None
None
None
128KB
(9) 64K x 1
(9) 64K x 1
None
None
192KB
(9) 64K x 1
(9) 64K x 1
(9) 64K x 1
None
256KB
(9) 64K x 1
(9) 64K x 1
(9) 64K x 1
(9) 64K x 1

DRAM SWITCH CONFIGURATION
Size
SWA/5
SWA/6
SWA/7
SWA/8
64KB
On
Off
Off
Off
128KB
On
On
Off
Off
192KB
On
On
On
Off
256KB
On
On
On
On

STARTING MEMORY ADDRESS SELECTION
Setting
SWA/1
SWA/2
SWA/3
SWA/4
0KB
Off
Off
Off
Off
64KB
Off
Off
Off
On
128KB
Off
Off
On
Off
192KB
Off
Off
On
On
256KB
Off
On
Off
Off
320KB
Off
On
Off
On
384KB
Off
On
On
Off
448KB
Off
On
On
On
512KB
On
Off
Off
Off
576KB
On
Off
Off
On
640KB
On
Off
On
Off
704KB
On
Off
On
On
768KB
On
On
Off
Off
832KB
On
On
Off
On
896KB
On
On
On
Off
960KB
On
On
On
On

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256K MEMORY BOARD (REV. C) Memory card Settings and Configuration

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Card Type	Memory
Maximum Onboard Memory	256KB DRAM
I/O Options	N/A
Data Bus	8-bit ISA

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
64KB	(9) 64K x 1	None	None	None
128KB	(9) 64K x 1	(9) 64K x 1	None	None
192KB	(9) 64K x 1	(9) 64K x 1	(9) 64K x 1	None
256KB	(9) 64K x 1	(9) 64K x 1	(9) 64K x 1	(9) 64K x 1

DRAM SWITCH CONFIGURATION
Size	SWA/5	SWA/6	SWA/7	SWA/8
64KB	On	Off	Off	Off
128KB	On	On	Off	Off
192KB	On	On	On	Off
256KB	On	On	On	On

STARTING MEMORY ADDRESS SELECTION
Setting	SWA/1	SWA/2	SWA/3	SWA/4
0KB	Off	Off	Off	Off
64KB	Off	Off	Off	On
128KB	Off	Off	On	Off
192KB	Off	Off	On	On
256KB	Off	On	Off	Off
320KB	Off	On	Off	On
384KB	Off	On	On	Off
448KB	Off	On	On	On
512KB	On	Off	Off	Off
576KB	On	Off	Off	On
640KB	On	Off	On	Off
704KB	On	Off	On	On
768KB	On	On	Off	Off
832KB	On	On	Off	On
896KB	On	On	On	Off
960KB	On	On	On	On