Interrupts; Table 2-2 Sources For 8254 Documentation - Keithley DAS-800 series User Manual

Interrupts

Table 2-2. Sources for 8254 Documentation
Company
Intel Corporation
Harris Semiconductor
Newbridge
Microsystems
DAS-800 Series boards can generate interrupts from one of the following
interrupt sources:
External interrupt - An interrupt is generated when a rising edge
is applied to the INT_IN / XCLK pin (pin 24) on the main
I/O connector.
If you are using an external interrupt, you cannot use the
Note:
INT_IN / XCLK pin (pin 24) to connect a hardware external
clock source.
End-of-Conversion (EOC) interrupt - An interrupt is generated
when an A/D conversion is complete.
The interrupt source is software-selectable. At power-up or system reset,
the board assumes that the interrupt source is an external interrupt.
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