RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 211
Sep 22, 2011
4.2.8 Port 7
Port 7 is an I/O port with an output latch. Port 7 can be set to the input mode or output mode in 1-bit units using port
mode register 7 (PM7). When used as an input port, use of an on-chip pull-up resistor can be specified in 1-bit units by
pull-up resistor option register 7 (PU7).
Output from the P71 and P74 pins can be specified as N-ch open-drain output (V
DD tolerance) in 1-bit units using port
output mode register 7 (POM7).
This port can also be used for key interrupt input, serial interface data I/O, clock I/O, and external interrupt request input.
Reset signal generation sets port 7 to input mode.
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