Sony CXD5602 User Manual page 178

3.6.5.2 Register Descriptions
By turning off the PWD_SYSIOP power supply, all register values of RTC1 (from 0x04109000 to 0x041090C8)
return to initial values. However, no register values of RTC0 (from 0x04108000 to 0x041080C8) return to initial
values. When tuning on the PWD_SYSIOP power supply again, alarm information set in the RTC0 can be read.
The following are registers that do not return to initial values.

AlmOutEn(0/1/2).Dbg

AlmOutEn(0/1).ErrDbg

DbgSetAlmPostCnt(0/1/2).Dbg

DbgSetAlmPreCnt(0/1/2).Dbg

AlmFlg.Flg(0/1/2)

AlmFlg.ErrFlg(0/1)
3.6.5.2.1 WrRegPostCnt(0x00)
31 30 29 28
Post
RW
15 14 13 12
Post
RW

bit[31:0] : Post[31:0] (PostCounter Write Value)
This is a value reflected on PostCounter of RTC when Write Request (WrRegReq) is issued, or when RTC
receives an interrupt (External Alarm Flag) from PMIC_INT.
27 26 25 24
11 10 9 8
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7 6 5 4
CXD5602 User Manual
19 18 17 16
3 2 1 0