R01UH0823EJ0100 Rev.1.00
Page 410 of 1823
Jul 31, 2019
RX23W Group
20. Event Link Controller (ELC)
20.
Event Link Controller (ELC)
20.1
Overview
The event link controller (ELC) uses the interrupt requests generated by various peripheral modules as event signals, and
interconnects (links) peripheral modules. As a result, peripheral modules can directly perform interlinked operation
among them without using software.
Event signals can be output regardless of the settings of the corresponding interrupt request enable bits.
lists the specifications of the ELC, and
shows a block diagram of the ELC.
Note 1. When an input signal to a corresponding pin changes, an event is generated in a single port or in a port group specified as the
input.
Figure 20.1
ELC Block Diagram (n = 1 to 4, 7, 8, 10, 12, 14 to 16, 18 to 29)
Table 20.1
ELC Specifications
Item
Description
Event link function
60 types of event signals can be directly interconnected to modules.
Operation for timer modules when inputting an event signal can be selected.
Event linkage operation is possible for port B and port E.
Single port*
: Event linkage operation can be set in a single specified port.
Port group*
: Event linkage operation can be set by grouping multiple specified ports
among total of eight ports.
Low power consumption function
Module stop state can be set.
Int
ernal
pe
riphera
l b
us
PDBF1, PDBF2
PEL0 to PEL3
PGC1, PGC2
PGR1, PGR2
ELOPD
ELOPC
Port event
I/O control
Timer event
input control
ELOPB
ELOPA
Port B and port E
Timer modules
LVD
DOC
ELSRn
ELCR
Event control
Peripheral modules
(excluding timers)
DMAC
DTC
ICU
Clock generation
circuit
ELC