r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 383

• 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
Figure 18.6
18.3.3
18.3.3.1
Figure 18.6 shows the Time Changing Procedure. Follow Figure 18.6 for the procedure for changing the data of
seconds, minutes, hours, days of the week, days, months, and years.
Check the BSY bit in the TRESEC register and change the data registers of seconds, minutes, hours, days of the
week, days, months, and years when the BSY bit is 0. Then, check the BSY bit again, and if this bit is 0 time
rewrite operation has ended. When the BSY bit is 1, wait until this bit is set to 0, and change the above data
registers again.
Time Changing and Reading Procedures
No
No
Preliminary document
Specifications in this document are tentative and subject to change.
Time Changing Procedure
Time Changing Procedure
hours, days of the week, days, months, and years.
Write to the data registers of seconds, minutes,
Write to the PM bit in the TRECR register.
BSY bit in TRESEC register = 0
BSY bit in TRESEC register = 0
Yes
Yes
When the BSY bit = 1,
wait for approx. 15.7 ms
(max).
When the BSY bit = 1,
wait for approx. 15.7 ms
(max).
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18. Timer RE2