Intel Arria 10 User Manual

Select PMA-only bonding when a bonded protocol is not explicitly supported by the
hard PCS blocks. For example, for Interlaken protocol, PMA-only bonding is used and a
soft PCS bonding IP is implemented in the FPGA fabric.
3.9.4. Skew Calculations
To calculate the maximum skew between the channels, the following parameters are
used:
• PMA to PCS datapath interface width (S)
• Maximum difference in number of parallel clock cycles between deassertion of
each channel's FIFO reset (N).
To calculate the channel skew, the following five scenarios are considered:
• Non-bonded
In this case, both the PMA and PCS are non-bonded. Skew ranges from 0 UI to
[(S-1) + N*S] UI.
• PMA bonding using x6 / xN clock network
In this case, the PCS is non-bonded. Skew ranges from [0 to (N*S)] UI + x6/xN
clock skew.
• PMA bonding using the PLL feedback compensation clock network
In this case, the PCS is non-bonded. Skew ranges from [0 to (N*S)] UI +
(reference clock skew) + (x6 clock skew).
• PMA and PCS bonding using the x6 / xN clock network
Skew = x6 / xN clock skew.
• PMA and PCS bonding using PLL feedback compensation clock network
Skew = (reference clock skew) + (x6 clock skew).
3.10. PLL Feedback and Cascading Clock Network
The PLL feedback and cascading clock network spans the entire side of the device, and
is used for PLL feedback compensation bonding and PLL cascading.
3. PLLs and Clock Networks
UG-01143 | 2018.06.15
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10 Transceiver PHY User Guide
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Intel Arria 10 Specifications

General

Transceiver Data Rate	Up to 17.4 Gbps
Transceiver Protocols Supported	CPRI, JESD204B
Transceiver Power Consumption	Varies depending on configuration and data rate. Refer to Intel Arria 10 device power estimation tools.
Transceiver Features	Clock data recovery
Power Consumption per Channel	Varies depending on data rate and equalization settings. Refer to Intel Arria 10 device power estimation tools.
Transceiver Type	FPGA integrated transceiver
Operating Temperature Range	-40°C to 100°C (Industrial)
Number of Transceiver Channels	up to 96 full-duplex