User manual

Board Address jumpers are marked A5-A9. The following table lists jumpers name vs. the address line
controlled and the relative weights of each.
Table 4-2: Board Base Address Setup
Board Address Settings
1st Digit 2nd Digit
3rdDigit
Jumper Name
A9 A8 A7 A6 A5
Address Line Controlled
A9 A8 A7 A6 A5
Decimal Weight
512 256 128 64 32
Hexadecimal Weight
200 100 80 40 20
In order to read the address jumper setup, assign a binary "1" to jumpers that are OFF and a binary "0"
to the jumpers that are ON. For example, as illustrated in the following table, address selection
corresponds to binary 11 000x xxxx (hex 300). The "x xxxx" represents address lines A4 through A0
used on the board to select individual registers. See Chapter 5, Programming in this manual.
Table 4-3: Example Address Setup
Jumper Name
A9 A8 A7 A6 A5
Setup
OFF OFF ON ON ON
Binary Representation
1 1 0 0 0
Conversion Factors
2 1 8 4 2
HEX Representation
3 0 0
Review the Address Selection Table carefully before selecting the board address. If the addresses of
two installed functions overlap you will experience unpredictable computer behavior.
Manual 104-ICOM-2S, 104-COM-2S 17