SLAU367P October 2012 – April 2020 MSP430FR5041 , MSP430FR5043 , MSP430FR50431 , MSP430FR5847 , MSP430FR58471 , MSP430FR5848 , MSP430FR5849 , MSP430FR5857 , MSP430FR5858 , MSP430FR5859 , MSP430FR5867 , MSP430FR58671 , MSP430FR5868 , MSP430FR5869 , MSP430FR5870 , MSP430FR5872 , MSP430FR58721 , MSP430FR5887 , MSP430FR5888 , MSP430FR5889 , MSP430FR58891 , MSP430FR5922 , MSP430FR59221 , MSP430FR5947 , MSP430FR59471 , MSP430FR5948 , MSP430FR5949 , MSP430FR5957 , MSP430FR5958 , MSP430FR5959 , MSP430FR5962 , MSP430FR5964 , MSP430FR5967 , MSP430FR5968 , MSP430FR5969 , MSP430FR5969-SP , MSP430FR59691 , MSP430FR5970 , MSP430FR5972 , MSP430FR59721 , MSP430FR5986 , MSP430FR5987 , MSP430FR5988 , MSP430FR5989 , MSP430FR5989-EP , MSP430FR59891 , MSP430FR5992 , MSP430FR5994 , MSP430FR59941 , MSP430FR6005 , MSP430FR6007 , MSP430FR6035 , MSP430FR6037 , MSP430FR60371 , MSP430FR6041 , MSP430FR6043 , MSP430FR60431 , MSP430FR6045 , MSP430FR6047 , MSP430FR60471 , MSP430FR6820 , MSP430FR6822 , MSP430FR68221 , MSP430FR6870 , MSP430FR6872 , MSP430FR68721 , MSP430FR6877 , MSP430FR6879 , MSP430FR68791 , MSP430FR6887 , MSP430FR6888 , MSP430FR6889 , MSP430FR68891 , MSP430FR6920 , MSP430FR6922 , MSP430FR69221 , MSP430FR6927 , MSP430FR69271 , MSP430FR6928 , MSP430FR6970 , MSP430FR6972 , MSP430FR69721 , MSP430FR6977 , MSP430FR6979 , MSP430FR69791 , MSP430FR6987 , MSP430FR6988 , MSP430FR6989 , MSP430FR69891
The RTC_B module registers are listed in Table 28-1. This table also lists the retention during LPMx.5. Registers that are not retained during LPMx.5 must be restored after exit from LPMx.5. The base address for the RTC_B module registers can be found in the device-specific data sheet. The address offsets are given in Table 28-1.
NOTE
Most registers have word or byte register access. For a generic register ANYREG, the suffix "_L" (ANYREG_L) refers to the lower byte of the register (bits 0 through 7). The suffix "_H" (ANYREG_H) refers to the upper byte of the register (bits 8 through 15).
| Offset | Acronym | Register Name | Type | Access | Reset | LPMx.5 and Backup Operation |
|---|---|---|---|---|---|---|
| 00h | RTCCTL01 | Real-Time Clock Control 0, 1 | Read/write | Word | 7000h | not retained |
| 00h | RTCCTL0 | Real-Time Clock Control 0 | Read/write | Byte | 00h | not retained |
| or RTCCTL01_L | ||||||
| 01h | RTCCTL1 | Real-Time Clock Control 1 | Read/write | Byte | 70h | not retained |
| or RTCCTL01_H | ||||||
| 02h | RTCCTL23 | Real-Time Clock Control 2, 3 | Read/write | Word | 0000h | retained |
| 02h | RTCCTL2 | Real-Time Clock Control 2 | Read/write | Byte | 00h | retained |
| or RTCCTL23_L | ||||||
| 03h | RTCCTL3 | Real-Time Clock Control 3 | Read/write | Byte | 00h | retained |
| or RTCCTL23_H | ||||||
| 08h | RTCPS0CTL | Real-Time Prescale Timer 0 Control | Read/write | Word | 0000h | not retained |
| 08h | RTCPS0CTLL | Read/write | Byte | 00h | not retained | |
| or RTCPS0CTL_L | ||||||
| 09h | RTCPS0CTLH | Read/write | Byte | 00h | not retained | |
| or RTCPS0CTL_H | ||||||
| 0Ah | RTCPS1CTL | Real-Time Prescale Timer 1 Control | Read/write | Word | 0000h | not retained |
| 0Ah | RTCPS1CTLL | Read/write | Byte | 00h | not retained | |
| or RTCPS1CTL_L | ||||||
| 0Bh | RTCPS0CTLH | Read/write | Byte | 00h | not retained | |
| or RTCPS0CTL_H | ||||||
| 0Ch | RTCPS | Real-Time Prescale Timer 0, 1 Counter | Read/write | Word | none | retained |
| 0Ch | RT0PS | Real-Time Prescale Timer 0 Counter | Read/write | Byte | none | retained |
| or RTCPS_L | ||||||
| 0Dh | RT1PS | Real-Time Prescale Timer 1 Counter | Read/write | Byte | none | retained |
| or RTCPS_H | ||||||
| 0Eh | RTCIV | Real Time Clock Interrupt Vector | Read | Word | 0000h | not retained |
| 10h | RTCTIM0 | Real-Time Clock Seconds, Minutes | Read/write | Word | undefined | retained |
| 10h | RTCSEC | Real-Time Clock Seconds | Read/write | Byte | undefined | retained |
| or RTCTIM0_L | ||||||
| 11h | RTCMIN | Real-Time Clock Minutes | Read/write | Byte | undefined | retained |
| or RTCTIM0_H | ||||||
| 12h | RTCTIM1 | Real-Time Clock Hour, Day of Week | Read/write | Word | undefined | retained |
| 12h | RTCHOUR | Real-Time Clock Hour | Read/write | Byte | undefined | retained |
| or RTCTIM1_L | ||||||
| 13h | RTCDOW | Real-Time Clock Day of Week | Read/write | Byte | undefined | retained |
| or RTCTIM1_H | ||||||
| 14h | RTCDATE | Real-Time Clock Date | Read/write | Word | undefined | retained |
| 14h | RTCDAY | Real-Time Clock Day of Month | Read/write | Byte | undefined | retained |
| or RTCDATE_L | ||||||
| 15h | RTCMON | Real-Time Clock Month | Read/write | Byte | undefined | retained |
| or RTCDATE_H | ||||||
| 16h | RTCYEAR | Real-Time Clock Year(1) | Read/write | Word | undefined | retained |
| 18h | RTCAMINHR | Real-Time Clock Minutes, Hour Alarm | Read/write | Word | undefined | retained |
| 18h | RTCAMIN | Real-Time Clock Minutes Alarm | Read/write | Byte | undefined | retained |
| or RTCAMINHR_L | ||||||
| 19h | RTCAHOUR | Real-Time Clock Hours Alarm | Read/write | Byte | undefined | retained |
| or RTCAMINHR_H | ||||||
| 1Ah | RTCADOWDAY | Real-Time Clock Day of Week, Day of Month Alarm | Read/write | Word | undefined | retained |
| 1Ah | RTCADOW | Real-Time Clock Day of Week Alarm | Read/write | Byte | undefined | retained |
| or RTCADOWDAY_L | ||||||
| 1Bh | RTCADAY | Real-Time Clock Day of Month Alarm | Read/write | Byte | undefined | retained |
| or RTCADOWDAY_H | ||||||
| 1Ch | BIN2BCD | Binary-to-BCD Conversion Register | Read/write | Word | 00h | not retained |
| 1Eh | BCD2BIN | BCD-to-Binary Conversion Register | Read/write | Word | 00h | not retained |