Data Video PTC-150T, Instruction Manual, Page: 44 / 57

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Fig. 2 Packet structure
Note
Fig. 2 shows the packet structure, while Fig. 3 shows the actual waveform. Data flow will take
place with the LSB first.
Fig. 3 Actual waveform for 1 byte
10.2.2.2 Timing Chart
As VISCA Command processing can only be carried out one time in a Vertical cycle, it takes the
maximum 1V cycle time for an ACK/Completion to be returned. If the Command
ACK/Completion communication time can be cut shorter than the 1V cycle time, then every 1V
cycle can receive a Command.