Altera Remote Update IP Core User Manual
Page 12
Name
Port
Required?
Description
write_param
Input
No
Write signal for parameter specified in
param[]
and
with value specified in
data_in[]
.
Signal indicating parameter specified with
param[]
should be written into remote update block with the
value specified in
data_in[]
. The number of bits
read from
data_in[]
depends on the parameter type.
The signal is sampled at the rising clock edge. The
signal should be asserted for only one clock cycle to
prevent the parameter from being rewritten on a
subsequent clock cycle. The busy signal is activated as
soon as
write_param
is read as being active. While
the parameter is being written, the busy signal
remains asserted, and input to
data_ in[]
is ignored.
When the busy signal is deactivated, another
parameter can be written. This signal is only valid in
Factory configuration mode because parameters
cannot be written in Application configuration mode.
The signal cannot be used in Local update mode.
param[]
Input
No
Bus that specifies which parameter need to be read or
updated.
A 3-bit bus that selects the parameter to be read or
updated. If left unconnected, the default value for this
port is 000.
data_in[]
Input
No
Data input for writing parameter data into the remote
update block. Input bus for parameter data.
For some parameters, not all bits are used. In this
case, the lower-order bits are used (for example,
status values use bits
[4:0]
).
If left unconnected, this bus defaults to 0. The port is
ignored if the current configuration is the Application
configuration.
A 32-bit bus width(4-bytes addressing configuration
device, for example EPCQ-L256) in the Quartus II
software version 14.0 or later.
reconfig
Input
Yes
Signal indicating that reconfiguration of the part
should begin using the current parameter settings. A
value of 1 indicates reconfiguration should begin.
This signal is ignored while busy is asserted to ensure
all parameters are completely written before reconfi‐
guration begins.
12
Ports
UG-31005
2015.04.07
Altera Corporation
Altera Remote Update IP Core User Guide