Information

RTC_LR field descriptions
Field Description
31–8
Reserved
This read-only field is reserved and always has the value zero.
7
Reserved
This read-only field is reserved and always has the value one.
6
LRL
Lock Register Lock
Once cleared, this bit can only be set by VBAT POR or software reset.
0 Lock register is locked and writes are ignored.
1 Lock register is not locked and writes complete as normal.
5
SRL
Status Register Lock
Once cleared, this bit can only be set by VBAT POR or software reset.
0 Status register is locked and writes are ignored.
1 Status register is not locked and writes complete as normal.
4
CRL
Control Register Lock
Once cleared, this bit can only be set by VBAT POR.
0 Control register is locked and writes are ignored.
1 Control register is not locked and writes complete as normal.
3
TCL
Time Compensation Lock
Once cleared, this bit can only be set by VBAT POR or software reset.
0 Time compensation register is locked and writes are ignored.
1 Time compensation register is not locked and writes complete as normal.
2–0
Reserved
This read-only field is reserved and always has the value one.
Chapter 39 Real Time Clock (RTC)
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 873