Altera LVDS SERDES Manual do Utilizador descarregar pdf (Página 12)

PLL Settings Tab

DescriptionValueParameter

When enabled, the IP core does not instantiate a

PLL locally. Instead, a series of clock connections

are elaborated with the prefix "ext" that should be

connected to an externally generated PLL. This

option allows you to access all of the available

clocks from the PLL, as well as use advanced PLL

features such as clock switchover, bandwidth

presets, dynamic phase stepping, and dynamic

reconfiguration.

The Clock Resource Summary tab guides you to

configure your external PLL.

—

Use external PLL

Specifies the inclock frequency in MHz—Desired inclock frequency

Specifies the closest inclock frequency to the

desired frequency that can source the interface.

—

Actual inclock frequency

Specifies the FPGA/PLL speed grade which

determines the operation range of the PLL.

—

FPGA/PLL speed grade

When enabled, this parameter exposes the pll_

areset port, which you can use to reset the entire

LVDS interface.

—Enable pll_areset port

Specifies which clock network the Altera LVDS

SERDES IP core should export an internally

generated coreclock onto.

This feature is not supported in the

current version of the Quartus II

software. However, this can be

manually added using QSF

assignments.

Note:

—Core clock resource type

Receiver Settings Tab

DescriptionValueParameter

Bitslip Settings

When enabled, this parameter adds a bitslip block

to the data path of the receiver and exposes the rx_

bitslip_ctrl port (one input per channel). Every

assertion of the rx_bitslip_ctrl signal adds one

bit of serial latency to the data path of the specified

channel.

—Enable bitslip mode

Altera LVDS SERDES IP Core User Guide

Altera Corporation

Send Feedback

ug_altera_lvds

PLL Settings Tab

2014.08.18

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 26 27

Comentários a estes Manuais

Sem comentários

Altera LVDS SERDES Manual do Utilizador Página 12

Comentários a estes Manuais

Manuais e produtos relacionados com Instrumentos de medida Altera LVDS SERDES