RL78/D1A User's Manual: Hardware - Renesas

Under development
Preliminary document
Specifications in this document are tentative and subject to change.
RL78/D1A CHAPTER 2 PIN FUNCTIONS
(a) TI20 (P60), TI21 (P61), TI24 (P66), TI25 (P65), TI26 (P63) and TI27 (P62)
These are the pins for inputting an external count clock/capture trigger to 16-bit timers 20, 21, and 24 to 27.
(b) TO20 (P60), TO21 (P61), TO24 (P66), TO25 (P65), TO26 (P63) and TO27 (P62)
These are the timer output pins of 16-bit timers 20, 21, and 24 to 27.
(c) SCL11 (P60)
This is a serial clock output pin of serial interface for simplified I2C.
(d) SDA11 (P61)
This is a serial data I/O pin of serial interface for simplified I2C.
(e) RTC1HZ (P64)
This is a real-time clock correction clock (1 Hz) output pin.
(f) PCL (P66)
This is a clock/buzzer output pin.
(g) INTP1 (P60) and INTP3 (P61)
These are the external interrupt request input pins for which the valid edge (rising edge, falling edge, or both
rising and falling edges) can be specified.
2.2.8 P70 to P75 (port7)
P70 to P75 function as a 6-bit I/O port.
These pins also function as A/D conversion start trigger input, output pins for the sound generator, serial interface data
I/O, timer I/O, clock / buzzer output, flash memory programming I/O, external interrupt request input, and segment signal
outputs for the LCD controller/driver.
Input to the P70 pin can be specified through a normal Schmitt3 input buffer or a Schmitt1 input buffer, using port input
mode register 7 (PIM7).
The following operation modes can be specified in 1-bit units.
(1) Port mode
P70 to P75 function as a 6-bit I/O port.
P70 to P75 can be set to input or output port in 1-bit units using port mode register 7 (PM7). Use of an on-chip pull-up
resistor can be specified by pull-up resistor option register 7 (PU7).
(2) Control mode
P70 to P75 function as an I/O port. These pins also function as A/D conversion trigger input, output pins for the sound
generator, serial interface data I/O, timer I/O, clock / buzzer output, flash memory programming I/O, external interrupt
request input, and segment signal outputs for the LCD controller/driver.
(a) ADTRG (P72)
This is an external input pin for AD conversion start trigger.
(b) SGO (P73)
This is an output pin for the sound generator.
R01UH0317EJ0004 Rev. 0.04 45
Feb. 22, 2013