Abov MC96F6332D, User Manual

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MC96F6432
298 June 22, 2018 Ver. 2.9
14.2 Two-Pin External Interface
14.2.1 Basic Transmission Packet
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10-bit packet transmission using two-pin interface.
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1-packet consists of 8-bit data, 1-bit parity and 1-bit acknowledge.
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Parity is even of ‘1’ for 8-bit data in transmitter.
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Receiver generates acknowledge bit as ‘0’ when transmission for 8-bit data and its parity has no error.
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When transmitter has no acknowledge
(Acknowledge bit is ‘1’ at tenth clock), error process is executed in
transmitter.
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When acknowledge error is generated, host PC makes stop condition and transmits command which has error
again.
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Background debugger command is composed of a bundle of packet.
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Start condition and stop condition notify the start and the stop of background debugger command respectively.
Figure 14.2 10-bit Transmission Packet