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APB IF
SetTime
SetAlarm
SetAlarm
Control
operate with PWD_SYSIOP power supply
As for Time Counter, there are two ways of updating and synchronizing time separately. By using Interrupt, you
can check whether the Time Counter has been completely updated or not.
How to set Time Counter
1. You can set the designated Time Counter value
2. You can adjust the current Time Counter
How to set Time Synchronization
3. You can set another RTC Time Counter value inside CXD5602.
4. At the timing of asserting either External Alarm Flag (Interrupt from PMIC_INT) or Alarm from RTC
inside CXD5602 (RTCx_ExtAlm), you can set the designated Time Counter value.
Time Update
Time Counter
Pre
Post
A
AlarmTime2
A＝B
B
Pre
Post
A
AlarmTime1
A＝B
B
Pre
Post
A
B
A
AlarmTime0
A＝B
B
Pre
Post
A
B
RTCx_ExtAlmCtrlSel
RTCx_ExtAlmCtrlPol
RTCx_CLKNEGEDGE_EN
RTC0: operate always (Powered in always)
RTC1: operate with PWD_SYSIOP power supply
Figure RTC-37 RTC Block Diagram
－173/1010－
AlarmFlag2
AlarmFlag1
ErrorFlag1
A>B
AlarmFlag0
A>B
ErrorFlag0
Alarm
Control
Time
Update Done
Register
0
3
2
0
1
0
1
CXD5602 User Manual
RTCx_Alarm2
RTCx_Alarm1
to NVIC
PMU
RTCx_Alarm0
RTCx_Misc
0
RTCx_ExtAlm
to IO(only RTC0)
RTC Time sync.
1
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- Cxd5602 Outline
- Block Diagram
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