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 TLV descriptors follow the information block. Because the information block is always a fixed length, the start location of the TLV descriptors is fixed for a given device family. For the MSP430FR57xx family, this location is 01A08h. See the device-specific data sheet for the complete TLV structure and what descriptors are available.
The TLV descriptors are unique to their respective TLV block and are always followed by the descriptor block length.
Each TLV descriptor contains a tag field that identifies the descriptor type. Table 1-5 shows the currently supported tags.
| Short Name | Value | Description |
|---|---|---|
| LDTAG | 01h | Legacy descriptor (1xx, 2xx, 4xx families) |
| PDTAG | 02h | Peripheral discovery descriptor |
| Reserved | 03h | Reserved for future use |
| Reserved | 04h | Reserved for future use |
| BLANK | 05h | Blank descriptor |
| Reserved | 06h | Reserved for future use |
| Reserved | 07h | Reserved for future use |
| Reserved | 08h | Unique Die Record |
| Reserved | 09h-0Fh | Reserved for future use |
| Reserved | 10h | Reserved |
| ADC12CAL | 11h | ADC12 calibration (see Section 1.14.3.2 and Section 1.14.3.3) |
| REFCAL | 12h | REF calibration (see Section 1.14.3.1) |
| ADC10CAL | 13h | ADC10 calibration (see Section 1.14.3.2 and Section 1.14.3.3) |
| Reserved | 14h | Reserved for future use |
| RANDTAG | 15h | Random Number Seed (see Section 1.14.3.4) |
| Reserved | 16h-1Bh | Reserved for future use |
| BSLTAG | 1Ch | BSL Configuration |
| Reserved | 1Dh-FDh | Reserved for future use |
| TAGEXT | FEh | Tag extender |
Each tag field is unique to its respective descriptor and is always followed by a length field. The length field is one byte if the tag value is 01h through 0FDh and represents the length of the descriptor in bytes. If the tag value equals 0FEh (TAGEXT), the next byte extends the tag values, and the following two bytes represent the length of the descriptor in bytes. In this way, a user can search through the TLV descriptor table for a particular tag value, using a routine similar to the following pseudo code:
// Identify the descriptor ID (d_ID_value) for the TLV descriptor of interest:
descriptor_address = TLV_START address;
while ( value at descriptor_address != d_ID_value && descriptor_address != TLV_TAGEND && descriptor_address < TLV_END)
{
// Point to next descriptor
descriptor_address = descriptor_address + (length of the current TLV block) + 2;
}
if (value at descriptor_address == d_ID_value) {
// Appropriate TLV descriptor has been found!
Return length of descriptor & descriptor_address as the location of the TLV descriptor
} else {
// No TLV descriptor found with a matching d_ID_value
Return a failing condition
}