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This is a Communication Control Block (CCB) parameter. It occupies byte 0 in the CCB.
When the CCB is activated with a COMSetCCB, the specified protocol is activated and takes charge.
Protocol assignments are:
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1 |
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2 |
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3 |
User programmable |
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Note that a protocol other than SPLatLink cannot be invoked (switched to) in the first 10 seconds after a reset.
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