Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 1/21/2022
Public
Download
Document Table of Contents

5.6.7.1.1. Differential Data Orientation

There is a set relationship between an external clock and the incoming data. For operations at 1 Gbps and a serialization factor of 10, the external clock is multiplied by 10. You can set phase-alignment in the PLL to coincide with the sampling window of each data bit. The data is sampled on the falling edge of the multiplied clock.

Figure 120. Bit Orientation in the Intel® Quartus® Prime SoftwareThis figure shows the data bit orientation of the x10 mode.