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
Comparator_E Control Register 2
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| CEREFACC | CEREFL | CEREF1 | |||||
| rw-0 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 |
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| CERS | CERSEL | CEREF0 | |||||
| rw-0 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 | rw-0 |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 15 | CEREFACC | RW | 0h | Reference accuracy. A reference voltage is requested only if CEREFL > 0.
0b = Static mode 1b = Clocked (low power, low accuracy) mode |
| 14-13 | CEREFL | RW | 0h | Reference voltage level
00b = Reference amplifier is disabled. No reference voltage is requested. 01b = 1.2 V is selected as shared reference voltage input 10b = 2.0 V is selected as shared reference voltage input 11b = 2.5 V is selected as shared reference voltage input |
| 12-8 | CEREF1 | RW | 0h | Reference resistor tap 1. This register defines the tap of the resistor string while CEOUT = 1. |
| 7-6 | CERS | RW | 0h | Reference source. This bit define if the reference voltage is derived from VCC or from the precise shared reference.
00b = No current is drawn by the reference circuitry. 01b = VCC applied to the resistor ladder 10b = Shared reference voltage applied to the resistor ladder. 11b = Shared reference voltage supplied to VCCREF. Resistor ladder is off. |
| 5 | CERSEL | RW | 0h | Reference select. This bit selects to which terminal the VCCREF is applied.
When CEEX = 0: 0b = When CEEX = 0: VREF is applied to the V+ terminal; When CEEX = 1: VREF is applied to the V– terminal 1b = When CEEX = 0: VREF is applied to the V– terminal; When CEEX = 1: VREF is applied to the V+ terminal |
| 4-0 | CEREF0 | RW | 0h | Reference resistor tap 0. This register defines the tap of the resistor string while CEOUT = 0. |