XMC-6VLX
USER’S MANUAL
Acromag, Inc. Tel: 248-295-0310
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www.acromag.com
Table 3.6:
Interrupt Enable
Register
Bit(s)
FUNCTION
0
This bit when set indicates a Xilinx Fabric interrupt from the
Front I/O interface is enabled. See the Front I/O interrupt
section for source of this interrupt.
0
Disabled
1
Enabled
1
This bit when set indicates an AXI CDMA interrupt enable. See
the CDMA section for source of this interrupt.
0
Disabled
1
Enabled
31-2
Reserved
0
NA
1
NA
Interrupt Acknowledge Register (Write) - (BAR0 + 0x0010000C)
The Interrupt Acknowledge register is a write-only location that clears the
interrupt request associated with selected interrupt inputs. Note that
writing one to a bit in Interrupt Acknowledge register clears the
corresponding bit in Interrupt Status register, and also clears the same bit
itself in the Interrupt Acknowledge register.
Writing a ‘1’ to a bit location in the Interrupt Acknowledge register will clear
the interrupt request that was generated by the corresponding interrupt
input. An interrupt input that is active and masked by writing a ‘0’ to the
corresponding bit in the Interrupt Enable register will remain active until
cleared by acknowledging it. Unmasking an active interrupt causes an
interrupt request output to be generated (if the Master Interrupt Enable bit-
0 in the Master Enable register is set). Writing 0s has no effect as does
writing a ‘1’ to a bit that does not correspond to an active input or for which
an interrupt input does not exist. The bit locations in the Interrupt
Acknowledge register correspond with the bit locations given in the
Interrupt Enable register Table.
Set Interrupt Enable Register (Write) - (BAR0 + 0x00100010)
Set Interrupt Enable register is a location used to set Interrupt Enable
register bits in a single atomic operation, rather than using a read / modify /
write sequence. Writing a ‘1’ to a bit location in the Set Interrupt Enable
register will set the corresponding bit in the Interrupt Enable register.
Writing 0s does nothing, as does wiring a ‘1’ to a bit location that
corresponds to a non-existing interrupt input. The bit locations in the Set
Interrupt Enable correspond with the bit locations given in the Interrupt
Enable register Table.
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