
Bit Parameter Width Comments
100 Boot Address —
For the Quartus II software version 13.1 and
onwards:
• Width of 29 or 32 when reading the boot address.
• Width of 24 or 32 when writing the boot address.
• For active serial devices using the 24-bit
addressing, such as EPCS128 or EPCQ128, boot_
address[23..2] corresponds to the upper 22 bits
of the 24-bits boot address. boot_address[1..0]
is read as 2'b0.
• For active serial devices using the 32-bit
addressing, such as EPCQ256, boot_
address[31..2] corresponds to the upper 30 bits
of the 32-bits boot address. boot_address[1..0]
is read as 2'b0.
For the Quartus II software version 13.0 or earlier:
• Width of 24 when reading the boot address.
• Width of 22 when writing the boot address.
• Writes the boot address to the upper 22 bits of the
24-bits boot address.
101
Illegal Value
110
Force the internal oscillator
as startup state machine
clock (osc_int) option bit
1 —
111 Reconfiguration trigger
conditions (Read Only)
5
Bit 4 (nconfig_source)—external configuration reset
(nconfig) assertion.
Bit 3 (crcerror_source)—CRC error during
application configuration.
Bit 2 (nstatus_source)—nstatus asserted by an
external device as the result of an error.
Bit 1 (wdtimer_source)—User watchdog timer
timeout.
Bit 0 (runconfig_source)—Configuration reset
triggered from logic array.
Remote Update Operation
Note:
read_source specifies whether a parameter value is read from the current or a previous state. For
more information, refer to Table 14.
Note: Perform remote update operations in the corresponding master state machine (MSM) mode.
UG-31005
2015.04.07
Remote Update Operation
35
Altera Remote Update IP Core User Guide
Altera Corporation
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