r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 190

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
12.3
Figure 12.2
The path for using an event signal generated by a peripheral function as an interrupt request to the interrupt control
circuit is independent from the path for using it as an ELC event. Therefore, each event signal can be used as an
event signal for operation of an event-receiving peripheral function, regardless of interrupt control.
In addition, event link operation can be performed without being influenced by the presence or absence of a CPU
clock supply. However, the operating clock of a peripheral function needs to be supplied and be in an operational
state.
Figure 12.2 shows the Relationship between Interrupt Handling and ELC. The figure show an example of an
interrupt request status flag and a peripheral function possessing the enable bits that control enabling/disabling of
such interrupts.
A peripheral function which receives an event from the ELC will perform the operation corresponding to the event-
receiving peripheral function after reception of an event (Refer to Table 12.3 Correspondence between Values
Set to ELSELRn (n = 0 to 4, 8, 9, 11 to 16) Registers and Operation of Link Destination Peripheral Functions
At Reception).
Operation
Peripheral function (Event output side)
Interrupt request
Preliminary document
Specifications in this document are tentative and subject to change.
Relationship between Interrupt Handling and ELC
Interrupt enable
(Event signal)
control
Status flag
Interrupt control
circuit
ELC
(Event reception side)
12. Event Link Controller (ELC)
Peripheral function
CPU
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