Why is the ff_tx_crc_fwd port missing from the TSE IP when implemented in Qsys?

Description

The port ff_tx_crc_fwd is not available when using the Triple Speed Ethernet (TSE) IP within Qsys. This signal is internally tied to a value of 1'b0 within the IP.

However, CRC calculation and insertion can still be enabled or disabled on the TX datapath via the OMIT_CRC option in the tx_cmd_stat register (address: 0x3A, bit 17).

Resolution

Starting in Quartus® II software version v13.0, Qsys generates all TSE IP signals.