ASSIGNMENT:

Concepts:

• Transaction layer architecture

Questions:

1. Understand TLP features
   1. Split Transaction protocol
   1. Credit-based flow control
   1. Data poisoning
   1. Mechanisms for differentiating the ordering and processing requirements of Transaction Layer Packets
   1.  
2. Come up with Transaction layer architecture diagram
3. List down various TLP’s supported by TL
4. List down fields in each TLP
5. Understand significance of each field

TL CSR Registers:

• List down registers required for TL implementation

TL Components:

• Need for TL DMA
• TL Transmit and receive descriptor format
  • 64 bits
• Understand TLP header
• Format of the packet
• Type of the packet
• Length for any associated data
• Transaction Descriptor, including:
  • Transaction ID
  • Attributes
  • Traffic Class
• Address/routing information
• Byte Enables
• Message encoding
• Completion status