Chapter 5 Serial Functions

5-2-3 Serial Interface Transfer Timing

Serial interface 0 uses the SC0CE0 and SC0CE1 flags of serial interface 0 mode register 0 (SC0MD0), to control the edge at which transmission data is output and the edge at which reception data is input.

During transmission, when the SCnCE1 flag is "0," data output is synchronized to the falling edge of the clock.

During reception, when the SCnCE0 flag is "0," data reception is synchronized to the opposite polarity edge of the transmit data edge. When the SCnCE0 flag is "1," data reception is synchronized to the same polarity edge as the transmit data edge.

Table 5-2-1 Serial Data Input Edge and Output Edge (serial interface 0)

SC0CE0 SC0CE1

Receive Data Input Edge

Transmit Data Output Edge

0

0

0

1

1

0

1

1

Synchronous Serial Interface

99

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Panasonic MN101C00 user manual Serial Interface Transfer Timing, Serial Data Input Edge and Output Edge serial interface