
B. Card Addressing
The card address is set by installing appropriate jumper pairs
on JP2, pins 1 thru 16, as shown in Fig. 3.
Addresses A15 thru A10 (JP2-1 thru 11) are jumper selectable
for defining the base address of the card from 0000H to FC00H
on integral 10H boundaries, where H denotes a hexadecimal
number.
IMPORTANT: For addresses A15 thru A10 (JP2-1 thru 11), an
installed jumper for a given address bit sets the bit to 1 (true)
and an uninstalled jumper sets the bit equal to 0 (false).
Examples for setting the base address are as follow:
Example 1. Set a base address of 0000H.
No jumpers are installed for JP2-1 thru 11.
Example 2. Set a base address of 3800H.
Intall jumpers JP2-5, JP2-7 and JP2-9.
Jumpers JP2-13 and JP2-15 are used to select the serial port
address for the UART. The card addresses for these selections
are given in Table I. It should be noted that for a base address
of zero, the addresses of the UARTs are the standard serial port
addresses COM1 thru COM4 of the IBM PC.
IMPORTANT: For addresses A4 and A8 (JP2-13 and JP2-15) ,
an
uninstalled jumper for a given address bit sets the bit to 1
(true) and an installed jumper sets the bit equal to 0 (false).
o o o o o o o o
o o o o o o o o
1 A15
3 A14
5 A13
7 A12
9 A11
11 A10
13 A8
15 A4
Figure 3. Jumper block JP2 configuration.
Page 6 MSI-P604 User Manual
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