CXD5602 User Manual
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PWD_CORE
PWD_SYSIOP
RTC_CLK_IN(32.768kHz)
RCOSC
Divider
1/250
0
1
Calibration
required to 8MHz
RTC Clock
CKSEL_ROOT.PMU_STAT_CLK_SEL4[1]
RTC1
RTC0
SYSIOP_CKEN.SYSIOP_RTC
APB IF
CK_APB
CK
GA TE
Figure RTC-36 Clock Resources of RTC
3.6.3
Function List
Table RTC-62 shows list of functions that this block holds.
Table RTC-62 Function List
No
Function Name
Description
1
RTC Counter Update/Synchronization
updates internal RTC counter in variety of conditions
2
Alarm Output
outputs Alarm Flag at the prescribed time
3.6.4
Function Block Diagrams
Figure RTC-37 is a block diagram that shows functional specification of this block. There are one Time Counter
and three Alarm Timers. Registers are set via APB IF block. APB IF block is operated by PWD_SYSIOP power
supply. RTC0 can select one Alarm from three Alarms, and output it from CXD5602 RTC_IRQ_OUT terminal.
Update function of Time Counter (Time Update) is shown in the block diagram on the next page.
Summary of Contents for CXD5602
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