The Image Information 1 registers are described in Table: Image Information 1 Registers (0x60, 0x68, 0x70, 0x78) and provide image information for line count and byte count per VC. The byte count gets updated whenever a long packet (from Data Types 0x18 and above) for the corresponding virtual channel is processed by the control FSM. The line count is updated whenever the packet is written into the line buffer.