84 PPC11A 6U VME Single Board Computer
Publication No. PPC11A-HRM/1
5.17.6 GPIO (15-8) Interrupt Polarity Register (Offset 0x681)
For each GPIO, this register sets the interrupt detection sensitivity of each interrupt
pin (active high/low or rising/falling edge depending on the level/edge mode):
1 = Active high/rising edge
0 = Active low/falling edge (default)
5.17.7 GPIO (15-8) Interrupt Both Edges Register (Offset 0x682)
For each GPIO:
1 = Both-edges mode enabled
0 = Both-edges mode disabled (default)
When enabled, Both-edges mode causes interrupts to be generated on both rising
and falling edges.
NOTE
The GPIO bit must be in Edge mode for Both-edges mode to work.
5.17.8
GPIO (15-8) Interrupt Status/Clear Register (Offset 0x683)
For each GPIO:
1 = Interrupt pending
0 = No interrupt (default)
Write a ‘1’ to a bit to clear the interrupt pending status.
5.17.9 GPIO (15-8) Availability Register (Offset 0x684)
For each GPIO:
1 = GPIO available
0 = GPIO not available
This register allows software to easily determine which of the GPIO15-8 signals are
available on the PPC11A. All GPIO signals use shared backplane pins and are only
available when the PPC11A is configured with the appropriate build option.
5.17.10 GPIO (15-8) Interrupt Select Register (Offset 0x685)
For each GPIO:
1 = Interrupt routed to secondary GPIO interrupt output
0 = Interrupt routed to main GPIO interrupt output (default)
Содержание PPC11A
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