Intel® Quartus® Prime Standard Edition User Guide: Platform Designer
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3.11.6. Width Adaptation and Data Packing in Platform Designer
The following rules apply:
- Data packing is supported when masters and slaves are Avalon® -MM.
- Data packing is not supported when any master or slave is an AMBA* 3 AXI, AMBA* 4 AXI, or APB component.
For example, for a read/write command with a 32-bit master connected to a 64-bit slave, and a transaction of 2 burstcounts, Platform Designer sends 2 separate read/write commands to access the 64-bit data width of the slave. Data packing is only supported if the system does not contain AMBA* 3 AXI, AMBA* 4 AXI, or APB masters or slaves.