Altera OCT - Manual (Page 7)

Table 3: Termination Interface Signals
Description Direction Signal Name
16 bit input port. Receives impedance calibration code for
output termination. Source can only be
seriesterminationcontrol
port from the Altera
OCT megafunction.
Input seriesterminationcontrol
16 bit input port. Receives impedance calibration code for
input termination. Source can only be
parallelterminationcontrol
port from the
Altera OCT megafunction.
Input parallelterminationcontrol
QSF Assignments
Arria 10 devices has the following termination related Quartus II Settings File (.qsf) assignments:
• INPUT_TERMINATION
• OUTPUT_TERMINATION
• TERMINATION_CONTROL_BLOCK
• RZQ_GROUP
The following table lists the details of each assignment:
Table 4: QSF Assignments
Details QSF Assignment
The input/output termination assignment specifies
the termination value in ohm on the pin in
question.
Example
set_instance_assignment -name
INPUT_TERMINATION <value> -to
<pin name>
set_instance_assignment -name
OUTPUT_TERMINATION <value> -to
<pin name>
INPUT_TERMINATION
OUTPUT_TERMINATION
Altera Corporation Altera OCT Megafunction User Guide
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7 QSF Assignments
ug-altera_oct
2013.11.29