EasyManua.ls Logo

Renesas RX Series

Renesas RX Series
1823 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
R01UH0823EJ0100 Rev.1.00 Page 828 of 1823
Jul 31, 2019
RX23W Group 30. Watchdog Timer (WDTA)
Figure 30.3 Operation Example in Register Start Mode
Refresh-
prohibited
period
(1)
(2) (2) (2)
(1) Initial value
(2) Set value
Writing to the
register is invalid.
Status flag
cleared
Status flag
cleared
Counter value
Refresh-
permitted
period
Refresh-
prohibited
period
100%
75%
50%
25%
0%
RES# pin
WDTCR
register
Refresh
the counter
Active: High
REFEF flag
Active: High
UNDFF flag
Active: High
Reset output
from WDT
Active: High
Counting starts
Counting starts
Counting starts
Writing to the
register is invalid.
Writing to the
register is valid.
Interrupt request
(WUNI)
Active: Low
H
L
H
L
H
L
H
L
H
Underflow
Refresh error Refresh error

Table of Contents

Related product manuals