INVISIBLE EMS Memory card Settings and Configuration

INVISIBLE SOFTWARE, INC.

INVISIBLE EMS

Card Type
Memory card
Maximum Onboard Memory
8192KB DRAM
Data Bus
16-bit ISA
Card Size
Three-quarter length, full-height card

USER CONFIGURABLE SETTINGS
Function
Label
Position
Parity enable
W1
Closed
Parity disable
W1
Open
High memory enable
SW1/1
Off
High memory disable
SW1/1
On

BUS TYPE SELECTION
BUS
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
XT
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
AT
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
Note: Pins designated are in the closed position.

BIT MODE SELECTION
Mode
W15
W16
W17
W18
W19
W20
8-bit
Closed
Closed
Open
Open
Open
Open
8/16-bit
Open
Open
Closed
Closed
Open
Open
16-bit
Open
Open
Open
Open
Closed
Closed

DRAM JUMPER CONFIGURATION
Size
Bank 0
Bank 1
512KB
(9) 256K x 1
(9) 256K x 1
2048KB
(9) 1M x 1
(9) 1M x 1
8192KB
(9) 4M x 1
(9) 4M x 1
Note: 16-pin memory chips should be mounted in the lower left corner of the socket. 18-pin memory chips should be mounted in the upper right corner of the socket.

MEMORY CHIP TYPE SELECTION
Type
W21
W22
256K x 1
Pins 2 & 3 closed
Pins 2 & 3 closed
1M x 1
Pins 2 & 3 closed
Pins 1 & 2 closed
4M x 1 DRAM
Pins 1 & 2 closed
Pins 1 & 2 closed

ADAPTER SELECTION
Setting
W13
W14
Primary
Pins 1 & 2 closed
Pins 1 & 2 closed
Secondary
Pins 2 & 3 closed
Pins 2 & 3 closed

I/O ADDRESS SELECTION
Setting
SW1/6
SW1/7
SW1/8
208h
Closed
Closed
Closed
218h
Closed
Closed
Open
248h
Open
Closed
Closed
258h
Open
Closed
Open
2A8h
Closed
Open
Closed
2B8h
Closed
Open
Open
2E8h
Open
Open
Closed
2F8h
Open
Open
Open

DOS BACKFILL SELECTION
Backfill
SW1/2
SW1/3
SW1/4
SW1/5
None
Closed
Closed
Closed
Closed
512K-640K
Open
Closed
Closed
Closed
384K-640K
Open
Open
Closed
Closed
256K-640K
Open
Open
Closed
Open
128K-640K
Open
Open
Open
Closed
0K-640K
Open
Open
Open
Open
384K-512K
Closed
Open
Closed
Closed
256K-512K
Closed
Open
Closed
Open
128K-512K
Closed
Open
Open
Closed
0K-512K
Closed
Open
Open
Open
Note: This feature allows user with less than 640K of onboard memory to increase DOS memory to 640K.

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INVISIBLE EMS Memory card Settings and Configuration

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Card Type	Memory card
Maximum Onboard Memory	8192KB DRAM
Data Bus	16-bit ISA
Card Size	Three-quarter length, full-height card

USER CONFIGURABLE SETTINGS
Function	Label	Position
Parity enable	W1	Closed
Parity disable	W1	Open
High memory enable	SW1/1	Off
High memory disable	SW1/1	On

BUS TYPE SELECTION
BUS	W2	W3	W4	W5	W6	W7	W8	W9	W10	W11
XT	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
AT	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
Note: Pins designated are in the closed position.

BIT MODE SELECTION
Mode	W15	W16	W17	W18	W19	W20
8-bit	Closed	Closed	Open	Open	Open	Open
8/16-bit	Open	Open	Closed	Closed	Open	Open
16-bit	Open	Open	Open	Open	Closed	Closed

DRAM JUMPER CONFIGURATION
Size	Bank 0	Bank 1
512KB	(9) 256K x 1	(9) 256K x 1
2048KB	(9) 1M x 1	(9) 1M x 1
8192KB	(9) 4M x 1	(9) 4M x 1
Note: 16-pin memory chips should be mounted in the lower left corner of the socket. 18-pin memory chips should be mounted in the upper right corner of the socket.

MEMORY CHIP TYPE SELECTION
Type	W21	W22
256K x 1	Pins 2 & 3 closed	Pins 2 & 3 closed
1M x 1	Pins 2 & 3 closed	Pins 1 & 2 closed
4M x 1 DRAM	Pins 1 & 2 closed	Pins 1 & 2 closed

ADAPTER SELECTION
Setting	W13	W14
Primary	Pins 1 & 2 closed	Pins 1 & 2 closed
Secondary	Pins 2 & 3 closed	Pins 2 & 3 closed

I/O ADDRESS SELECTION
Setting	SW1/6	SW1/7	SW1/8
208h	Closed	Closed	Closed
218h	Closed	Closed	Open
248h	Open	Closed	Closed
258h	Open	Closed	Open
2A8h	Closed	Open	Closed
2B8h	Closed	Open	Open
2E8h	Open	Open	Closed
2F8h	Open	Open	Open

DOS BACKFILL SELECTION
Backfill	SW1/2	SW1/3	SW1/4	SW1/5
None	Closed	Closed	Closed	Closed
512K-640K	Open	Closed	Closed	Closed
384K-640K	Open	Open	Closed	Closed
256K-640K	Open	Open	Closed	Open
128K-640K	Open	Open	Open	Closed
0K-640K	Open	Open	Open	Open
384K-512K	Closed	Open	Closed	Closed
256K-512K	Closed	Open	Closed	Open
128K-512K	Closed	Open	Open	Closed
0K-512K	Closed	Open	Open	Open
Note: This feature allows user with less than 640K of onboard memory to increase DOS memory to 640K.