3 spi slave interface, 4 asynchronous 8/16 bit µcontroller interface, 1 8 bit µcontroller interface – BECKHOFF EtherCAT IP Core for Altera FPGAs v3.0.10 User Manual
Page 83: Spi slave interface, Asynchronous 8/16 bit µcontroller interface, Table 29: spi pdi, Table 30: 8/16 bit µc pdi, Table 31: 8 bit µc pdi
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