The following PRU_ICSSG features are not supported:
- Only 4 of the IEP0 (and none of the IEP1) Ethernet Digital Data Input/Output's of each PRU_ICSSG are pinned out
- UART Modem interface (DTR, DSR, and RI) is not supported
- The following features are not supported for PRU_ICSSG0 and PRU_ICSSG1:
- 12 Enhanced General-Purpose Inputs (pr<0/1>_pru0_r31_in[31:20]) are not pinned out
- 12 Enhanced General-Purpose Outputs (pr<0/1>_pru0_r31_out[31:20]) are not pinned out
- SGMII mode is not supported on PRU_ICSSG0 and PRU_ICSSG1