Renesas RX Series

R01UH0823EJ0100 Rev.1.00 Page 425 of 1823
Jul 31, 2019
RX23W Group 20. Event Link Controller (ELC)
(2) Event Generation in Single Input Ports
A single port that is set as input generates an event signal when the input signal to the corresponding pin changes. The
event generation condition is specified using the PELm.PSM[1:0] bits (m = 0 to 3). An example of operation is shown in
Figure 20.3 (1).
(3) Single Output Ports Operation When Event Signal is Input
When an event signal is input to a single port set as output, the output level (the PODR register value) of the
corresponding pin changes as specified by the PELm.PSM[1:0] bits. An example of operation is shown in
Figure 20.3
(2)
.
Figure 20.3 Event Linkage Related to Single Ports (Port B)
(4) Event Generation in Input Port Group
An input port group generates an event signal when any of input signals to the corresponding pins change. The event
generation condition is specified using the PGCn.PGCI[1:0] bits (n = 1, 2).
Port B
(1) Example of operation for single input port (when the PSB[2:0] bits are 110b)
Event link
Peripheral
module
PB7
PB6
PB5
Pin
PB0
PB7
PB6
PB5
PB0
(2) Example of operation for single output port (when the PSB[2:0] bits are 010b)
Peripheral
module
PORTB.PODR
B7
B2
B1
B0
Event link
Pin
PB7
PB2
PB1
PB0