BECKHOFF EtherCAT IP Core for Altera FPGAs v3.0.10 - Manual (Page 49)

IP Core Configuration
Slave Controller – IP Core for Altera FPGAs III-37
5.2.3 Internal Functions tab
Figure 11: Internal Functions tab
FMMUs
Number of FMMU instances. Between 0 and 8 FMMUs are possible.
SyncManager
Number of SyncManager instances. Between 0 and 8 SyncManagers are possible.
Process Data RAM
The size of the Process data memory can be determined in this dialog. Minimum memory size is
0 Kbyte, maximum memory size is 60 Kbyte.
Receive Times enabled
The Distributed Clocks receive time feature for propagation delay calculation can be enabled without
using all DC features.