Panasonic FP-X0 L14R User Manual page 89

Header: STX, Terminator: ETX
Receiving data:
The "reception done" flag, the "transmission done" flag, and the F159 (MTRN) instruction are
related as follows:
The data is stored in the receive buffer in sequential order. When the header is received, the number of
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bytes received is cleared, and the address (write pointer) in the receive buffer is reset to the initial
address.
Reception is disabled while the "reception done" flag R9038 is on.
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Also, When F159 (MTRN) is executed, the number of bytes received is cleared, and the address (write
-
pointer) in the receive buffer is reset to the initial address.
If there are two headers, data following the second header overwrites the data in the receive buffer.
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The "reception done" flag R9038 is turned off by the F159 (MTRN) instruction. Therefore, if F159
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(MTRN) is executed at the same time the terminator is received, the "reception done" flag will not be
detected.
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