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RCIM User’s Guide
3-18
can also be configured and used locally on an isolated system. Configuration details are
given in the “DI Configuration” section below. See the section “Obtaining RCIM Values”
on page 3-11 for the methods available for obtaining configuration information.
The
rcim_distrib_intr(4)
man page provides complete information about DIs.
DI Configuration
1
It is important that all RCIM-connected systems have a compatible configuration for the
distributed interrupt lines of the RCIM.
By default, no distributed interrupts are configured.
Distributed interrupts must first have a source, and then can be configured to trigger on the
rising or falling edge of a signal, or on a high or low signal value.
To define the source for a distributed interrupt, use the following configuration option:
<source> | di
N
The value specified for the source can be one of the following:
rtc N real-time clock timers
pig N programmable interrupt generators
input N edge-triggered interrupts
eti N alias for edge-triggered interrupts
gps GPS signal
irig IRIG signal
none the RCIM is not to drive this distributed interrupt
Examples include:
Each distributed interrupt can be configured to trigger on the rising or falling edge of a
signal, or on a high or low signal value using the
di
configuration option. This option has
the following syntax:
di
N
/ [ rising | falling | high | low ]
The flag words (
rising
,
falling
,
high
,
low
) can be specified using the first
character of the word. These words are not case sensitive.
Examples include:
rtc3|di6
sets distributed interrupt 6 to be driven by real-time clock 3
pig1|di3
sets distributed interrupt 3 to be driven by programmable interrupt
generator 1
none|di0
the RCIM is not to drive distributed interrupt 0
di0/falling sets distributed interrupt 0 to trigger on the falling edge of its input
signal
di1/r sets distributed interrupt 1 to trigger on the rising edge of its input
signal