Altera LVDS SERDES Transmitter / Receiver - Manual (Page 37)

Parameter Type Description
inclock_data_alignment
String
Specifies the phase alignment of the
rx_in
and
rx_inclock
input ports in terms of the
rx_
inclock
frequency. The clock phase alignment
for the
inclock_data_alignment
parameter
specifies the positive phase shift needed for the
clock for alignment with the data.
This parameter is only used by the RTL
simulation model and has no affect on how the
Fitter sets the PLL parameters.
The following are the parameter values and the
corresponding phase shifts in degrees (°):
•
EDGE_ALIGNED: 0°
•
45_DEGREES: 45°
•
90_DEGREES: 90°
•
135_DEGREES: 135°
•
CENTER_ALIGNED: 180°
•
225_DEGREES: 225°
•
270_DEGREES: 270°
•
315_DEGREES: 315°
If omitted, the default value is
EDGE_ALIGNED
.
inclock_period
Integer Specifies the period or frequency of the
rx_
inclock
port. The default time unit is an
integer in picoseconds (ps). In AHDL designs
only, strings, such as 50.5 MHz, are acceptable.
inclock_phase_shift
Integer This parameter is used to set the phase shift
parameters used by the PLL. Specifies a phase
shift in 15° increments.
input_data_rate
Integer Specifies the data rate into the PLL. The
multiplication value for the PLL is
INPUT_DATA_
RATE/INCLOCK_PERIOD
.
lose_lock_on_one_change
String Specifies when the DPA circuitry should lose
lock. You must enable the
rx_dpa_locked
port
and the
enable_dpa_mode
parameter if this
parameter is specified. Values are
ON
and
OFF
. If
omitted, the default value is
ON
.
number_of_channels
Integer Specifies the number of LVDS channels.
outclock_resource
String Specifies the clock resource type to use with the
rx_outclock
port. The values are
AUTO
,
Regional Clock
, and
Global Clock
. If
omitted, the default value is
AUTO
.
pll_operation_mode
String Specifies the source synchronous mode for
Cyclone II and Stratix II device LE PLLs. The
values are
NORMAL
and
SOURCE_SYNCHRONOUS
. If
omitted, the default value is
NORMAL
.
UG-MF9504
2014.12.15
Command Line Interface Parameters 37
LVDS SERDES Transmitter/Receiver IP Cores User Guide Altera Corporation
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