Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 7/19/2024
Public
Document Table of Contents

5.8.6.5.13. Defining Byte Support

The defining byte is enabled for broadcast or directed SDR CCC transfers by setting the Defining Byte Present (DBP) bit in transfer command and the defining byte value is captured from Defining Byte (DB) field of transfer argument or short data argument. The defining byte is included after CCC code byte as sub command before the payload.

The placement of defining byte in broadcast CCC transfer is shown in the following figure.

Figure 188. Broadcast CCC with Defining Byte

The placement of defining byte in directed CCC transfers is shown in the following figure.

Figure 189. Directed CCC with Defining Byte