Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 423 of 1823
Jul 31, 2019
RX23W Group 20. Event Link Controller (ELC)
20.3.2 Event Linkage
When events are specified in the ELSRn registers, the corresponding peripheral modules can be operated at generation of
the specified events. A single peripheral module can link only with a single event. Set the ELSRn register after
completing the initialization of the peripheral module to operate by an event.
Table 20.5 lists the operations of
peripheral modules when an event signal is input.
Note 1. The SCKCR3.CKSEL[2:0] bits are modified to 000b (LOCO) regardless of the value of the protect register (PRCR.PRC0).
Table 20.5 Operations of Peripheral Modules When Event Signal is Input
Peripheral Module Operations When Event Signal is Input
MTU
CMT
TMR
The following operations can be selected by setting the ELOPA to ELOPD registers:
 Starts counting when an event signal is input.
 Restarts counting when an event signal is input.
 Counts the input events (CMT, TMR).
 Performs input-capture operation when an event signal is input (MTU).
POE The MTU complementary PWM output pins and MTU0 output pins become high-impedance when an event
signal is input.
A/D converter Starts A/D conversion when an event signal is input.
D/A converter Starts D/A conversion when an event signal is input.
I/O ports (output) The value of PODR register (port
output data register) changes when
an event signal is input (The level
output from the corresponding pin
changes).
Port group
 Changes the PODR register value to the
specified value.
 Transfers the PDBFn register value to
the PODR register (n = 1, 2).
 Rotates the PODR register.
Single port Changes the PODR register value to the
specified value.
I/O ports (input) When the signal level of the input
pin changes
Port group Generates an event.
Single port
When an event signal is input Port group Transfers the signal level of the input pin to
the PDBFn register.
Single port This combination cannot be used.
Clock generation circuit Switches the clock source to the low-speed on-chip oscillator when an event signal is input.*
1
Interrupt controller Request an interrupt to the CPU, starts DMA transfer, or starts DTC transfer when an event signal is input.

Renesas RX Series Specifications

General

Brand	Renesas
Model	RX Series
Category	Microcontrollers
Language	English