RL78/F13, F14 CHAPTER 2 PIN FUNCTIONS
R01UH0368EJ0210 Rev.2.10 75
Dec 10, 2015
2.2.7 P70 to P77 (Port 7)
P70 to P77 function as an I/O port. These pins also function as A/D converter analog input, external interrupt request
input, key interrupt input, serial interface slave select input, data I/O, clock I/O, timer I/O, SNOOZE status output, and CAN
serial data I/O.
Use of an on-chip pull-up resistor can be specified by pull-up resistor option register 7 (PU7).
For input to the P70, P71, and P73 pins, a CMOS input buffer or a TTL input buffer can be selected using the port input
mode register 7 (PIM7).
For output from the P70 to P72 pins, CMOS output or N-ch open-drain output can be selected using the port output mode
register 7 (POM7).
For the P70, P71, P73, and P75 to P77 pins, the input threshold level can be specified using the port input threshold
control register 7 (PITHL7).
Input to the P70 to P74 pins can be specified as digital input or analog input in 1-bit units, using the port mode control
register 7 (PMC7).
The following operation modes can be specified in 1-bit units.
(1) Port mode
P70 to P77 function as an I/O port. These pins can be set to input or output port in 1-bit units using port mode register 7
(PM7).
(2) Control mode
P70 to P77 function as A/D converter analog input, external interrupt request input, key interrupt input, serial interface
slave select input, data I/O, clock I/O, timer I/O, SNOOZE status output, and CAN serial data I/O.
(a) ANI26 to ANI30
These are analog input pins of the A/D converter. These pins are provided only in the 100-pin products of RL78/F14.
For details, see 12.10 (5) Analog input (ANIn) pins.
(b) INTP6, INTP8, INTP12
These are external interrupt request input pins for which the valid edge (rising edge, falling edge, or both rising and
falling edges) can be specified. INTP12 is provided only in the 100-pin products of RL78/F14.
(c) KR0 to KR7
These are key interrupt input pins.
(d) SSI10, SSI11
These are slave select input pins of the CSI10 (SPI10) and CSI11 (SPI11) serial interface.
(e) SI10, SI11
These are serial data input pins of the CSI10 and CSI11 serial interface.
(f) SO10, SO11
These are serial data output pins of the CSI10 and CSI11 serial interface.
(g) TXD1
This is a serial data output pin of the UART1 serial interface.
(h) RXD1
This is a serial data input pin of the UART1 serial interface.
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