Fig. 8-3: Digital Output Level - Addi-Data PC104-PLUS1500 Technical Description

PC104-PLUS1500
This error information is available for the user through an interrupt routine. Please
find further information in the software description "Interrupt", which is available
as a separate PDF file.
8.5 Interrupt
The board PC104-PLUS1500 has one interrupt line. You can select which
interrupt of the PCI bus is used by setting the turn switch (see
Possible interrupt sources :
Interruptible inputs (channel 2 and 3)
-
Timer1/watchdog run down
-
Timer2 run down
-
Counter overflow
-
Watchdog run down, outputs are reset
-
Voltage error (external voltage supply is not available)
-
Short-circuit error, overtemperature error
-
The interrupt source information is available for the user program through an
interrupt routine. Please find further information in the software description
„Interrupt", which is available as a separate PDF file.
Interruptible inputs: IRQ logic
It is possible to mask an OR event (Event) at rising/falling edge.
For the control of the IRW logic the following functions are available (set by
software):
enable/disable of the interrupt function
-
interrupt source rereadable
-
IRQ status register rereadable
-
the interrupt function is programmed through two registers, with which the
-
events are masked (Hex):
Mode_1 reacts on rising edges or high levels
Mode_2 reacts on falling edges or low levels

Fig. 8-3: Digital output level

Functions of the board
F ig. 5-1).
1 1 0 H
33