EP2S180F1020C4 Datasheet, PDF (686/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

Quartus II Software Support
Table 8–10. Input Ports of the altremote_update Megafunction (Part 2 of 2)
Port Name
param[2..0]
data_in[11..0]
Require
d
N
N
Source
Logic
Array
Logic
Array
Description
3-bit bus that selects which parameter should be read or written.
If this port is left unconnected, the default value is 0.
This signal is required if you intend on writing parameters to the
remote update block 12-bit bus used when writing parameters,
which specifies the parameter value. The parameter value is
requested using the param[] input and by driving the
write_param signal logic high, at which point the busy signal
goes logic high and the value of the parameter is captured from
this bus. For some parameters, not all 12 bits are used, in which
case only the least significant bits are used. This port is ignored
if the Current_Configuration parameter is set to an
application configuration since writing of parameters is only
allowed in the factory configuration. If this port is left
unconnected, the default value is 0.
Note to Table 8–10:
(1) Logic array source means that you can drive the port from internal logic or any general-purpose I/O pin.
Table 8–11. Output Ports of the altremote_update Megafunction (Part 1 of 2)
Port Name
busy
pgm_out[2..0]
Required Destination
Description
Y
Logic Array When this signal is a logic high, the remote update block is
busy either reading or writing a parameter. When the remote
update block is busy, it ignores its data_in[], param[],
and reconfig inputs. This signal goes high when
read_param or write_param is asserted and remains
asserted until the operation is complete.
Y
PGM[2..0] 3-bit bus that specifies the page pointer of the configuration
pins
data to be loaded when the device is reconfigured. This port
must be connected to the PGM[] output pins, which should be
connected to the external configuration device.
8–26
Stratix II Device Handbook, Volume 2
Altera Corporation
January 2008