Quartus® Prime Pro Edition User Guide: Platform Designer
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6.8.2.1. Avalon® Packets to Transactions Converter IP Data Packet Formats
The Avalon® Packets to Transactions Converter IP expects incoming data streams to be in the formats shown in the table below.
| Byte | Field | Description | 
|---|---|---|
| Transaction Packet Format | ||
| 0 | Transaction code | Type of transaction. | 
| 1 | Reserved | Reserved for future use. | 
| [3:2] | Size | Transaction size in bytes. For write transactions, the size indicates the size of the data field. For read transactions, the size indicates the total number of bytes to read. | 
| [7:4] | Address | 32-bit address for the transaction. | 
| [n:8] | Data | Transaction data; data to be written for write transactions. | 
| Response Packet Format | ||
| 0 | Transaction code | The transaction code with the most significant bit inversed. | 
| 1 | Reserved | Reserved for future use. | 
| [4:2] | Size | Total number of bytes read/written successfully. |