If you intend to use External Host for Partial Reconfiguration in Intel® Stratix® 10 devices, use the Partial Reconfiguration External Configuration Controller Stratix 10 Intel FPGA IP. This IP reserves dedicated configuration pins for partial reconfiguration during user mode according to your configuration scheme.
If you choose Active Serial x4 Configuration scheme, you must consider AS Configuration Timing parameters from the Intel® Stratix® 10 Device Datasheet.
If you choose AVST x8/16/32 Configuration scheme, you must consider Avalon® Streaming Configuration Timing parameters from the Intel® Stratix® 10 Device Datasheet.