IXXAT PC-I 04/104, Руководство по оборудованию

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PC-I 04/104 Manual, Version 2.7
Configuration
10
3.1.2 Setting the PC Interrupt
The required interrupt can be set separately for each CAN controller via the
jumper boards JP 10 (for CAN 1) and JP 11 (for CAN2). To set an interrupt on
the interface, the corresponding jumper must be closed. Only one interrupt may
be selected for each CAN controller. If no interrupt is required, no jumper of the
corresponding jumper board may be closed. The factory setting of the interface
is IRQ 5 for the first CAN controller and (if present) IRQ 7 for the second CAN
controller.
3.1.3 Setting the Interrupt Mode
The interface PC-I 04/104 provides three different types of interrupt triggering.
These can be set for CAN1 via the jumpers JP12, JP14 and JP15 and (if
present) for CAN2 via JP13, JP20 and JP21. The jumper settings are listed in
the following table. The default setting is marked with def. = default setting.
Trigger type JP12 JP14 JP15
Sides
ISA mode
(def.)
1-2 X 2-3
Level
Shared Low
(EISA)
1-2 X 1-2
Shared High 3-4 closed
1
2-3
Table 3-3:
Setting of the interrupt mode for CAN1
Trigger type JP13 JP20 JP21
Sides
ISA mode
(def)
1-2 X 2-3
Level
Shared Low
(EISA)
1-2 X 1-2
Shared High 3-4 closed
1
2-3
Table 3-4:
Setting of the interrupt mode for CAN2
1
Note on use of Shared High interrupt triggering:
With interrupt triggering Shared High, an IRQ line is used by several interrupt sources (e.g.
first CAN controller, second CAN controller, further ISA boards). The PC/104 specification
stipulates that the interrupt line must have only one 1 k Ohm resistor between ground and IRQ
line (see PC/104 specification Appendix C.3). A 1 k Ohm resistor can be connected via JP14
(CAN1) or JP20 (CAN2). If this trigger type is used with a PC-I 04/104 interface equipped with
two CAN controllers, this means that either jumper JP14 or JP20 is to be closed.