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RL78/G13 CHAPTER 2 PIN FUNCTIONS

R01UH0146EJ0100 Rev.1.00 81

Sep 22, 2011

(h) SCL10

This is a serial clock output pin of serial interface IIC10.

(i) TI00, TI05, TI06

There are the pins for inputting an external count clock/capture trigger to 16-bit timers 00, 05, and 06.

(j) TO00, TO05, TO06

These are the timer output pins of 16-bit timers 00, 05, and 06.

2.2.2 P10 to P17 (port 1)

P10 to P17 function as an I/O port. These pins also function as serial interface data I/O, clock I/O, programming UART

I/O, timer I/O, clock/buzzer output, and external interrupt request input.

Use of an on-chip pull-up resistor can be specified by pull-up resistor option register 1 (PU1).

Input to the P10, P11 and P13 to P17 pins can be specified through a normal input buffer or a TTL input buffer in 1-bit

units, using port input mode register 1 (PIM1).

Output from the P10 to P15 and P17 pins can be specified as normal CMOS output or N-ch open-drain output (V

tolerance) in 1-bit units, using port output mode register 1 (POM1).

The following operation modes can be specified in 1-bit units.

(1) Port mode

P10 to P17 function as an I/O port. P10 to P17 can be set to input or output port in 1-bit units using port mode

(2) Control mode

P10 to P17 function as serial interface data I/O, clock I/O, programming UART I/O, timer I/O, clock/buzzer output, and

external interrupt request input.

(a) INTP5

This is an external interrupt request input pin for which the valid edge (rising edge, falling edge, or both rising and

falling edges) can be specified.

(b) TxD0, TxD2

These are the serial data output pins of serial interface UART0 and UART2.

These are the serial data input pins of serial interface UART0 and UART2.

(d) SCK00, SCK20

These are the serial clock I/O pins of serial interface CSI00 and CSI20.

(e) SI00, SI11, SI20

These are the serial data input pins of serial interface CSI00, CSI11, and CSI20.

(f) SO00, SO11, SO20

These are the serial data output pins of serial interface CSI00, CSI11, and CSI20.

(g) TI01, TI02

These are the pins for inputting an external count clock/capture trigger to 16-bit timers 01 and 02.

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