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Altera Arria V Hard IP for PCI Express User Manual

Page 147

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Chapter 7: IP Core Interfaces

7–49

Physical Layer Interface Signals

December 2013

Altera Corporation

Arria V Hard IP for PCI Express

User Guide

Channel utilization for ×1, ×2, ×4, and ×8 variants is as follows:

f

For more comprehensive information about Arria transceivers refer to the
“Transceiver Banks” section in the

Transceiver Architecture in Arria V Devices

.

The following figures show the channel utilization for Gen1 and Gen2 variants using
the CMU PLL. The ×8 variant is only available for Gen1.

Table 7–1. Channel Utilization for Data and Clock Routing

Variant

Data

CMU Clock

×1, 1 instance

Channel 1 of GXB_L0

Channel 0 of GXB_L0

×1, 2 instances

Channel 1 of GXB_L0

Channel 1 of GXB_R0

Channel 0 of GXB_L0

Channel 0 of GXB_R0

×2, i instance

Channel 1-2 of GXB_L0

Channel 4 of GXB_L0

×2, 2 instances

Channel 1-2 of GXB_L0

Channel 1-2 of GXB_R0

Channel 4 of GXB_L0

Channel 4 of GXB_R0

×4, i instance

Channels 0-3 of GXB_L0

Channel 4 of GXB_L0

×4, 2 instances

Channels 0-3 of GXB_L0

Channels 0-3 of GXB_R0

Channel 4 of GXB_L0

Channel 4 of GXB_R0

×8, 1 instance

Channels, 0-3 and 5 of GXB_L0
and channels 0-2 of GXB_L1

Channel 4 of GXB_L0