Short Packet Structure

Packet Header (4 bytes)

• Data Identifier (DI) * 1byte： Contains the Virtual Channel[7:6] and Data Type[5:0].
• Packet Data * 2byte：Length is fixed at two bytes
• Error Correction Code (ECC) * 1byte：allows single-bit errors to be corrected and 2-bit errors to be detected.

Packet Size

• Fixed length 4 bytes

The first byte of any packet is the DI (Data Identifier) byte.

• DI[7:6]：These two bits identify the data as directed to one of four virtual channels.
• DI[5:0]：These six bits specify the Data Type.

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