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PCM-3780 User Manual 20
Base Address Setting (SW1)
Select an address which is not already in use by another card in the sys-
tem. If you are installing more than one PCM-3780 card in your system,
set the cards to different base addresses. The base address configuration
switch SW1 controls each card's base address, as shown below.
Switch ON: Address Line Value = 0
Switch OFF: Address Line Value = 1
For example:
Base Address 140H:
A6 OFF A7 ON A8 OFF A9 ON
*Default Setting = 300H
The following example shows how to set the base address to 140H.
The switch SW1 sum is set to 140H:
40H(A6=1) + 0(A7=0) + 100H(A8=1) + 0(A9=0) = 140
Table 3.2: Base Address Setting
Base Address A6 A7 A8 A9
100H － 13FH
0 010
140H － 17FH
1 010
……
3C0H － 3FFH
1 111
Address Line A6 A7 A8 A9
HEX Value 40H 80H 100H 200H