
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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