Altera Transceiver PHY IP Core User Manual

Page 416

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Name

Range

Description

Bonding mode

Non-bonded or x1

Bonded or ×6/xN
fb_compensation

In Non-bonded or x1 mode, each channel is paired

with a PLL.
If one PLL drives multiple channels, PLL merging is

required. During compilation, the Quartus II Fitter,

merges all the PLLs that meet PLL merging require‐

ments. Refer to

Merging TX PLLs In Multiple

Transceiver PHY Instances

on page 16-57 to

observe PLL merging rules.
Select ×6 to use the same clock source for up to 6

channels in a single transceiver bank, resulting in

reduced clock skew. You must use contiguous

channels when you select ×6 bonding. In addition,

you must place logical channel 0 in either physical

channel 1 or 4. Physical channels 1 and 4 are indirect

drivers of the ×6 clock network.
Select fb_compensation (feedback compensation) to

use the same clock source for multiple channels

across different transceiver banks to reduce clock

skew. For more information about bonding, refer to

"Bonded Channel Configurations Using the PLL

Feedback Compensation Path" in Transceiver

Clocking in Arria V devices chapter of the Arria V

Device Handbook.

Enable simplified data

interface

On/Off

When you turn this option On, the Native PHY

presents only the relevant data bits. When you turn

this option Off, the Native PHY presents the full raw

interface to the fabric. If you plan to dynamically

reconfigure the Native PHY, you must turn this

option Off and you need to understand the mapping

of data to the FPGA fabric. Refer to

Table 14-10

for

more information. When you turn this option On ,

the Native PHY presents an interface that includes

only the data necessary for the single configuration

specified.

Related Information

Transceiver Clocking in Arria V Devices

UG-01080

2015.01.19

General Parameters for Arria V GZ Native PHY

14-5

Arria V GZ Transceiver Native PHY IP Core

Altera Corporation

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