User guide

Because of xN clock network skew, the maximum achievable data rate decreases when TX channels span

several transceiver banks.

Figure 2-15: 10X12.5 Gbps xN Bonding

Transceiver PLL

Instance (6.25 GHz)

ATX PLL

Native PHY Instance

(10 Ch Bonded 12.5 Gbps)

TX Channel

Transceiver Bank 2

TX Channel

Master

CGB

Transceiver Bank 1

Related Information

• Implementing x6/xN Bonding Mode on page 3-54

For detailed information on xN bonding limitations

• Using PLLs and Clock Networks on page 3-49

For more information about implementing PLLs and clocks

PLL Feedback Compensation Clock Bonding Scenario

In the following figure, each lane is running at 12.5 Gbps. The first six TX channels reside in one

transceiver bank and the other four TX channels reside in the adjacent transceiver bank. The difference

between feedback compensation bonding and xN bonding is that feedback compensation bonding

separates the TX channels into multiple bonding groups, each group being driven by a separate x6 clock

2-80

PLL Feedback Compensation Clock Bonding Scenario

UG-01143

2015.05.11

Altera Corporation

Implementing Protocols in Arria 10 Transceivers

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