RX610 Group
14. I/O Ports
R01UH0032EJ0120 Rev.1.20
Page 398 of 1006
Feb 20, 2013
14.3
Settings of Ports
Individual pins for peripheral modules are indicated by "_OE" appended to the end of the pin name (for example,
TIOCA4_OE). In addition, the settings to enable desired outputs and the other settings are indicated as 1 and 0 in the
following tables, respectively.
Table 14.8 lists the settings to enable output of the signals from the individual pins of each port. For details on the
applicable output signals, see descriptions of the registers for each peripheral module.
Setting the port function control register m (PFCRm) changes the functions of peripheral-module pins with names ending
in A to D. For pins functioning as inputs, the pin names are placed in parentheses: " ( ) ". "
" in the following tables
means "Don't care".
Input from a pin to a peripheral module is enabled by setting the corresponding bit in the input buffer control register
(Pm.ICR) to 1*. It is necessary to set the peripheral module to use the enabled input function. For the peripheral module
settings to use the input function, see the section for the peripheral module.
Note: * When the input function is allocated to two or more external pins, PFCRm as well as Pm.ICR should be set to
select an input pin.
14.3.1
Port 0 (P0)
(1) P00/(TMRI2)/TxD6/(IRQ8-A)
The pin function is switched as shown below according to the combination of the register setting for the SCI and the B0
bit in P0.DDR.
Module Name
Pin Function
Setting
SCI
I/O Port
TxD6_OE
P0.DDR.B0
SCI
TxD6 output
1
I/O port
P00 output
0
1
P00 input (initial value) 0
0
(2) P01/(TMCI2)/(RxD6)/(IRQ9-A)
The pin function is switched as shown below according to the value of the B1 bit in P0.DDR.
Module Name
Pin Function
Setting
I/O Port
P0.DDR.B1
I/O port
P01 output
1
P01 input (initial value)
0
Summary of Contents for RX600 Series
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