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M17_spec.tex
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@ -1517,7 +1517,7 @@ Packets are sent using Packet Mode.
A Stream Mode Transmission begins with an LSF.
Packets are composed of a 1..n byte data type specifier and up to $823-n$ bytes of payload data. The data type specifier is encoded in the same way as UTF-8. It provides efficient coding of common data types. And it can be extended to include a very large number of distinct packet data type codes.
Packets are composed of a 1..n byte data type specifier and up to $823-n$ bytes of payload data. The data type specifier is a variable-length encoding using the same format as UTF-8. The data type specifier must be between $0$ and $2^{21}-1$ which will occupy between 1 and 4 bytes when encoded. Values from 0 to 127 are identical to their encoded form.
The data type specifier can also be used as a protocol specifier. For example, the following protocol identifiers are reserved in the M17 packet spec: