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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)

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

Altera Remote Update IP Core User Guide

Altera Corporation

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