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
Extended Scan Interface Oscillator Control Register
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| Reserved | ESICLKFQx | ||||||
| r0 | r0 | rw-1 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 |
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Reserved | ESICLKGON | ESIHFSEL | |||||
| r0 | r0 | r0 | r0 | r0 | r0 | rw-0 | rw-0 |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 15-14 | Reserved | R | 0h |
Reserved. These bits are always read as zero and, when written, do not affect the bit setting. |
| 13-8 | ESICLKFQx | RW | 20h |
Internal oscillator frequency adjust. These bits are used to adjust the internal oscillator frequency. Each increase or decrease of the ESICLKFQx bits increases or decreases the internal oscillator frequency by approximately 3%. 000000b = Minimum frequency ⋮ 100000b = Nominal frequency ⋮ 111111b = Maximum frequency |
| 7-2 | Reserved | R | 0h |
Reserved. These bits are always read as zero and, when written, do not affect the bit setting. |
| 1 | ESICLKGON | RW | 0h |
Internal oscillator control. When ESICLKGON = 1 and ESIHFSEL = 1, the internal oscillator calibration is started. ESICLKGON is not used when ESIHFSEL = 0. 0b = No internal oscillator calibration is started. 1b = The internal oscillator calibration is started when ESIHFSEL = 1. |
| 0 | ESIHFSEL | RW | 0h |
Internal oscillator enable. This bit selects the high frequency clock source for the TSM. 0b = TSM high frequency clock source is SMCLK. 1b = TSM high frequency clock source is the Extended Scan IF internal oscillator. |