You can merge simplex transceiver PHYs in the Platform Designer when using Intel® Arria® 10 and Intel® Stratix® 10 L-Tile/H-Tile devices with Wire-Level Expressions.
When merging Intel Arria 10 and Intel Stratix 10 L-Tile/H-Tile device simplex PHYs into a single duplex physical channel, one Intel® Quartus® Prime Software transceiver Fitter rule that must be followed is that the reconfig_address, reconfig_data, reconfig_write, and reconfig_read signals of the simplex TX and RX transceiver PHYs Avalon® Memory Mapped (AVMM) interface must be common.
Full transceiver merging rules are listed in the following user guides:
- Intel Arria 10 Transceiver PHY User Guide
- Intel Stratix 10 L- and H-Tile Transceiver PHY User Guide
The Intel Arria 10 and Intel Stratix 10 L-Tile/H-Tile device simplex TX and RX transceiver PHYs share a common address space.
The Platform Designer in the Intel Quartus Prime Software will produce an address space overlap error message if the simplex TX and RX PHYs share the same address space. Correcting this address space overlap in the Platform Designer causes it to insert logic between the transceiver TX and RX PHY Avalon memory mapped interfaces which violates the Intel Quartus Prime Software transceiver Fitter rule requirement for a common Avalon memory mapped bus. The design will fail to fit in the Intel Quartus Prime Software.
You can use Wire-Level Expressions in the Intel Platform Designer to allow the transceiver TX and RX PHYs to share the same address space.
The following example shows how you can use Wire-Level Expressions in the Platform Designer with a transmitter PHY named “TX” and a receiver PHY named “RX” that are both connected to a single Avalon memory-mapped Pipeline Bridge.
TX.reconfig_address = mm_bridge_0.m0_address
TX.reconfig_read =mm_bridge_0.m0_read
TX.reconfig_write = mm_bridge_0.m0_write
TX.reconfig_writedata = mm_bridge_0.m0_writedata
RX.reconfig_address = mm_bridge_0.m0_address
RX.reconfig_read = mm_bridge_0.m0_read
RX.reconfig_write = mm_bridge_0.m0_write
RX.reconfig_writedata = mm_bridge_0.m0_writedata