Many applications require proprietary functionality not offered by mainstream protocols. For these applications, Intel® FPGA transceivers offer 'basic' mode. Basic mode allows access to the building blocks within the transceiver. These can be individually configured or bypassed to meet your proprietary transceiver requirements.
Tables 1 and 2 list the basic modes available in Intel FPGA transceiver devices and provide a list of the transceiver physical coding sublayer (PCS) blocks available in this mode.