Altera LVDS SERDES Transmitter / Receiver User Manual

Page 36

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Parameter

Type

Description

enable_dpa_fifo

String

Indicates whether the DPA FIFO buffer is

enabled for this channel.You must enable the

rx_dpa_locked

port and

enable_dpa_mode

parameter if this parameter is specified. The

values are

ON

and

OFF

. If omitted, the default

value is

ON

. This parameter is available for

Stratix GX devices in DPA mode only.

enable_dpa_initial_phase_

selection

String

Specifies whether the

dpa_initial_phase_

value

parameter is enabled. The values are

ON

and

OFF

. If omitted, the default value is

OFF

.

When set to

OFF

, the

dpa_initial_phase_

value

parameter value is set to

0

.

enable_dpa_mode

String

Turns on DPA mode. The values are

ON

and

OFF

. If omitted, the default value is

OFF

.

enable_dpa_pll_calibration

String

The values are

ON

and

OFF

. The default value is

OFF

. Set this parameter to

ON

or

OFF

if you are

instantiating the ALTLVDS_RX IP core in DPA

mode with PLL calibration.

enable_soft_cdr_mode

String

Specifies whether the

rx_divfwdclk

port is

used. When set to

ON

, the

rx_divfwdclk

port is

driven by the DPA clock, and then it is divided

down by the deserialization factor. When set to

ON

, the DPA FIFO is bypassed and

rx_fifo_

reset

and

reset_fifo_on_first_lock

are

ignored. The values are

ON

and

OFF

. If omitted,

the default is

OFF

.

implement_in_les

String

Specifies whether to implement SERDES

circuitry in logic cells, which allows the circuitry

to behave similar to Stratix LVDS circuitry. Use

the

implement_in_les

parameter for SERDES

functions that require data rates that are lower

than the dedicated circuitry. Values are

ON

and

OFF

. Note that the receiver IP core starts

capturing the LVDS stream at the first rising

edge of the fast clock, after the PLL has locked.

This is intended for slow speeds and the bit

alignment may be different from a hard

SERDES implementation.

36

Command Line Interface Parameters

UG-MF9504

2014.12.15

Altera Corporation

LVDS SERDES Transmitter/Receiver IP Cores User Guide

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