RL78/F13, F14 CHAPTER 8 TIMER RD
R01UH0368EJ0210 Rev.2.10 591
Dec 10, 2015
Figure 8-22. Format of Timer RD I/O Control Register Ai (TRDIORAi) (i = 0 or 1) [Output Compare Function]
Address: F0271H (TRDIORA0), F0281H (TRDIORA1) After Reset: 00H
Note 1
Symbol 7 6 5 4 3 2 1 0
TRDIORAi — IOB2 IOB1 IOB0 0 IOA2 IOA1 IOA0
IOB2
TRDGRBi mode select
Note 2
R/W
Set to 0 (output compare) in the output compare function. R/W
IOB1 IOB0 TRDGRBi control R/W
0 0
Pin output by compare match is disabled (TRDIOBi pin functions as an I/O port)
R/W
0 1 Low output by compare match with TRDGRBi
1 0 High output by compare match with TRDGRBi
1 1 Toggle output by compare match with TRDGRBi
IOA2
TRDGRAi mode select
Note 3
R/W
Set to 0 (output compare) in the output compare function. R/W
IOA1 IOA0 TRDGRAi control R/W
0 0
Pin output by compare match is disabled (TRDIOAi pin functions as an I/O port)
R/W
0 1 Low output by compare match with TRDGRAi
1 0 High output by compare match with TRDGRAi
1 1 Toggle output by compare match with TRDGRAi
Notes 1. The value after reset is undefined when FRQSEL4 = 1 in the user option byte (000C2H/020C2H) and
TRD0EN = 0 in the PER1 register. If it is necessary to read the initial value, set f
CLK to fIH and TRD0EN =
1 before reading.
2. If 1 (buffer register for TRDGRBi register) is selected for the TRDBFDi bit in the TRDMR register, set the
same value to the IOB2 bit in the TRDIORAi register and the IOD2 bit in the TRDIORCi register.
3. If 1 (buffer register for TRDGRAi register) is selected for the TRDBFCi bit in the TRDMR register, set the
same value to the IOA2 bit in the TRDIORAi register and the IOC2 bit in the TRDIORCi register.
Bit 7 Nothing is assigned R/W
— The write value must be 0. The read value is 0. R
Bit 3 Reserved R/W
0 Set to 0. R/W
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