Microcomputer Systems MSI-P602 Bedienungsanleitung PDF herunterladen (Seite 7)

Table 1. UART Addresses for JP2-13 & JP2-15 Selection.



Jumper JP2-13 Jumper JP2-15 UART (U5)

Uninstalled Uninstalled base address + COM1**

Installed Uninstalled base address + COM2

Uninstalled Installed base address + COM3

Installed Installed base address + COM4



** COM1 = 3F8H

COM2 = 2F8H

COM3 = 3E8H

COM4 = 2E8H

where H denotes hexadecimal notational.

C. Interrupt Connections

Interrupt connections are implemented by jumpers JP1-1 thru

JP1-12. The steps in the procedure are as follows.

1) Pins JP1-10 and JP1-12 are connected to the interrupt

request signal of the UART (U5), as shown in Fig. 4. JP1-12 can

be jumpered to a desired interrupt, IRQ4 thru IRQ9 of JP1,

using a wire-wrap type connection. A 1K Ohm resistor is

available for pulling down the interrupt connection by installing

a jumper from JP1-8 to JP1-10.

2) Pins JP1-2 and JP1-4 are connected to the 1 PULSE/SEC

output of the GPS module for use in synchronizing GPS data,

Page 7 MSI-P604 User Manual

CAUTION: Make sure that the addresses you select for the

MSI-P604 are not in conflict with the serial ports of your CPU

card. For example, if your CPU uses COM1 and/or COM2,

install JP2-13 and JP2-15 so that COM3 or COM4 is selected

for the serial port. If your CPU contains COM1 thru COM4 ports

and you are not using one of these, then disable the port of the

CPU not being used and select this port for the MSI-P604 as

shown in Table 1. If this is not permissible, then you will have

to select a base address other than 0 by using jumpers for

JP2-1 thru JP2-11. UART addresses in this case are given in

Table 1.

1 2 3 4 5 6 7 8 9 10 11 12 ... 16 17

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Microcomputer Systems MSI-P602 Bedienungsanleitung Seite 7