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 details of the implemented CRC algorithm is shown by the following data sequences using word or byte accesses and the CRC data-in as well as the CRC data-in reverse byte registers:
mov #0FFFFh,&CRCINIRES ; initialize CRC
mov.b #00031h,&CRCDI_L ; "1"
mov.b #00032h,&CRCDI_L ; "2"
mov.b #00033h,&CRCDI_L ; "3"
mov.b #00034h,&CRCDI_L ; "4"
mov.b #00035h,&CRCDI_L ; "5"
mov.b #00036h,&CRCDI_L ; "6"
mov.b #00037h,&CRCDI_L ; "7"
mov.b #00038h,&CRCDI_L ; "8"
mov.b #00039h,&CRCDI_L ; "9"
cmp #089F6h,&CRCINIRES ; compare result
; CRCRESR contains 06F91h
jeq Success ; no error
br &Error ; to error handler
...
mov #0FFFFh,&CRCINIRES ; initialize CRC
mov.w #03231h,&CRCDI ; "1" & "2"
mov.w #03433h,&CRCDI ; "3" & "4"
mov.w #03635h,&CRCDI ; "5" & "6"
mov.w #03837h,&CRCDI ; "7" & "8"
mov.b #039h, &CRCDI_L ; "9"
cmp #089F6h,&CRCINIRES ; compare result
; CRCRESR contains 06F91h
jeq Success ; no error
br &Error ; to error handler
...
mov #0FFFFh,&CRCINIRES ; initialize CRC
mov.b #00031h,&CRCDIRB_L ; "1"
mov.b #00032h,&CRCDIRB_L ; "2"
mov.b #00033h,&CRCDIRB_L ; "3"
mov.b #00034h,&CRCDIRB_L ; "4"
mov.b #00035h,&CRCDIRB_L ; "5"
mov.b #00036h,&CRCDIRB_L ; "6"
mov.b #00037h,&CRCDIRB_L ; "7"
mov.b #00038h,&CRCDIRB_L ; "8"
mov.b #00039h,&CRCDIRB_L ; "9"
cmp #029B1h,&CRCINIRES ; compare result
; CRCRESR contains 08D94h
jeq Success ; no error
br &Error ; to error handler
...
mov #0FFFFh,&CRCINIRES ; initialize CRC
mov.w #03231h,&CRCDIRB ; "1" & "2"
mov.w #03433h,&CRCDIRB ; "3" & "4"
mov.w #03635h,&CRCDIRB ; "5" & "6"
mov.w #03837h,&CRCDIRB ; "7" & "8"
mov.b #039h, &CRCDIRB_L ; "9"
cmp #029B1h,&CRCINIRES ; compare result
; CRCRESR contains 08D94h
jeq Success ; no error
br &Error ; to error handler
...