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Setting Interrupts 2-27

2.4 Setting Interrupts

You should not normally have to change the default interrupt routing for

the SYM22801, since performance is usually increased by having two

separate interrupts. However, if your system does not support two

separate interrupts, jumper TP9 (see Figure A.1) is provided to change

the interrupt routing. The following table explains the jumper settings:

Table 2.2 Setting Interrupts

Jumper

Setting Condition

Jumper Out

(default)

INTB/ is routed to INTB/ on the PCI bus

Jumper In INTB/ is rerouted at power up to INTA/ on the

PCI bus

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 79 80

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LSI SYM22801 Manuale Utente Pagina 41