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Sshqgl[ $ 5hprwh $fwlydwlrq, Communication flow chart – Grass Valley XSwitch Feb 01 2005 User Manual

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©2001 XSWITCH Installation and Operations Manual 27

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Communication Flow Chart

Send Command

Packet

Initialize UART

1 Start Bit

8 Data Bits

1 Stop Bit

CRC <- 0

Count <- Len + 3

Update CRC

Send Byte

Count <- Count - 1

Count = 0?

Send CRC

Done

NO

YES