The memory address, I/O address, and interrupt vector used by the card are configured into the kernel as described in the Administrator's Guide. Only the I/O address has to be set on the card. This is done with a set of DIP switches at the top of the card.
Notes:
If your SGX has an 8 position dip-switch, switches 7 and 8 are unused.
|
Switch number |
I/O Location |
|||||
|
6 |
5 |
4 |
3 |
2 |
1 |
|
|
Setting the first digit (x = does not matter) |
||||||
|
ON |
x |
x |
x |
x |
x |
2xx |
|
OFF |
x |
x |
x |
x |
x |
3xx |
|
Setting the second digit (x = does not matter) |
||||||
|
x |
ON |
ON |
ON |
ON |
x |
x0x |
|
x |
ON |
ON |
ON |
OFF |
x |
x1x |
|
x |
ON |
ON |
OFF |
ON |
x |
x2x |
|
x |
ON |
ON |
OFF |
OFF |
x |
x3x |
|
x |
ON |
OFF |
ON |
ON |
x |
x4x |
|
x |
ON |
OFF |
ON |
OFF |
x |
x5x |
|
x |
ON |
OFF |
OFF |
ON |
x |
x6x |
|
x |
ON |
OFF |
OFF |
OFF |
x |
x7x |
|
x |
OFF |
ON |
ON |
ON |
x |
x8x |
|
x |
OFF |
ON |
ON |
OFF |
x |
x9x |
|
x |
OFF |
ON |
OFF |
ON |
x |
xAx |
|
x |
OFF |
ON |
OFF |
OFF |
x |
xBx |
|
x |
OFF |
OFF |
ON |
ON |
x |
xCx |
|
x |
OFF |
OFF |
ON |
OFF |
x |
xDx |
|
x |
OFF |
OFF |
OFF |
ON |
x |
xEx |
|
x |
OFF |
OFF |
OFF |
OFF |
x |
xFx |
|
Setting the last digit (x = does not matter) |
||||||
|
x |
x |
x |
x |
x |
ON |
xx0 |
|
x |
x |
x |
x |
x |
OFF |
xx8 |
Examples:
|
Switch number |
I/O Location |
|||||
|
6 |
5 |
4 |
3 |
2 |
1 |
|
|
OFF |
ON |
ON |
ON |
ON |
ON |
300 |
|
OFF |
ON |
ON |
ON |
OFF |
ON |
310 |
Host Memory Use: 4 kB, locatable on any 4K boundary (the last 3 digits of the hex starting memory address must be 000). For example, D8000 - D8FFF.
Memory Data Bus Width: Automatically adjusts to 8- or 16-bit for compatibility.
Host I/O Use: 8 bytes
Interrupt: One of 3-12, 14 or 15 (sharable between two or more SGX cards).
Download Module: netcom2d
Links: Link 0 is the upper connector; Link 1 is the lower connector.
The following table identifies pin connections between DB15 and DB25 connectors.
Note: To retain FCC Class A qualification all cables must be fully shielded and the shielding must be connected to the metal connectors.
|
Pin Numbers |
Description |
Direction |
|
|
Female DB15 |
Male DB25 |
||
|
2 |
2 |
TD, Transmit Data |
FROM |
|
4 |
3 |
RD, Receive Data |
TO |
|
3 |
4 |
RTS, Request to Send |
FROM |
|
10 |
5 |
CTS, Clear to Send |
TO |
|
12 |
6 |
DSR, Data Set Ready |
TO |
|
8 |
7 |
GND, Common Signal Ground |
not applicable |
|
5 |
8 |
CD, Carrier Detect |
TO |
|
13 |
15 |
TC, Transmit Clock |
TO |
|
14 |
17 |
RC, Receive Clock |
TO |
|
1 |
20 |
DTR, Data Terminal Ready |
FROM |
|
15 |
24 |
XTC, DTE Clock |
FROM |
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