A. Jumper Configurations
48
W11-W15
Selects which backplane interrupt to drive the IDE interrupt status. The default is to
drive no backplane interrupt. Factory Default is none installed.
JUMPER IN
FUNCTION
W11
IRQx enabled (STD 32 slot-specific interrupt)
W12
INTRQ1* enabled
W13
INTRQ* enabled
W14
INTRQ2* enabled
W15
INTRQ3* enabled (STD 32 only)
Note:
W15 is available on revisions 0.2 or greater. ZT 8911 or ZT 8902 CPU systems
should have W15 installed.
W10A, W10B
Selects interpretation mode for IDE interrupts. W10A enables and drives the interrupt
active. W10B drives the interrupt active but does not enable (gate it) on the backplane
unless the SLV/ACT signal is driven high by the IDE interface. This maintains
compatibility with some PC/AT Conner Peripheral IDE interface cards. See the following
figure "IDE Interrupt Interpretation" for details. Factory default is W10A installed.
JUMPER IN
FUNCTION
†
W10A
Enables, drives active IDE interrupts
W10B
Drives active IDE interrupts enables when SLV/ACT is driven high
Interrupt
Logic
W10B
W10A
SLV/ACT
IDE Interrupt
IDE Interrupt Interpretation
†
Factory default configuration
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com