Video Game Controller User Manual

Receive and Transmit Description
66 Software Developer’s Manual
Figure 3-19. Overall Data Flow
IP/TCP Header
Packet Data
Packet Data
Packet Data
HOST Memory
PCI FIFO
Header
Update
Checksum
Calculation
TX Packet FIFO
IP/TCP Header Buf fer
TCP Segmentation Data Flow
Descriptors f etch
IP/TCP Header
Prototy pe f etch
Packet Data Fetch
Header processing
Checksum
Calculations
Data Fetch Pause
Checksum Header
Insertion
Data Fetch
resume
Header processing
Checksum
Calculations
Data Fetch Pause
Checksum Header
Insertion
Tim e
Events Scheduling