Altera LVDS SERDES Transmitter / Receiver - Manual (Page 34)

Table 9: ALTLVDS_RX Parameters
Parameter Type Description
buffer_implementation
String
Specifies where to implement the buffer. The
values are
MUX
,
RAM
, and
LES
. A value of
MUX
implements a multiplexer instead of buffer
implementation. A value of
RAM
implements a
buffer in
RAM
blocks. A value of
LES
implements
a buffer in logic elements. The
RAM
and
LES
values use more logic, but result in the correct
word alignment. If omitted, the default value is
RAM
.
To use the
buffer_implementation
parameter,
the
implement_in_les
parameter must be
turned
ON
. You can also use the
buffer_
implementation
parameter with deserialization
factors of
5
,
7
, or
9
only.
common_rx_tx_pll
String Specifies whether the compiler uses the same
PLL for both the LVDS receiver and the LVDS
transmitter, or multiple LVDS receivers or
multiple LVDS transmitters, or both. You can
use common PLLs if the same input clock
source, same deserialization factor, same
pll_
areset
source, and same data rates are used.
Values are
ON
and
OFF
. If omitted, the default
value is
ON
.
data_align_rollover
Integer Specifies, in pulses, when the DPA circuitry
restores the serial data latency to
0
. You must
enable the
rx_dpa_locked
port and the
enable_dpa_mode
parameter if this parameter is
specified. The legal integer value ranges from
1
to
11
. If omitted, the default value is
4
.
34 Command Line Interface Parameters
UG-MF9504
2014.12.15
Altera Corporation LVDS SERDES Transmitter/Receiver IP Cores User Guide
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