AES MSP430F55xx

Oleksiy Pazyuk said:

Could someone clarify does MSP430F55xx have HW AES-module?

If it isn't listed in the datasheet, then this MSP doesn't have one.
Other MSPs have. The users guide lists all modules found in any of the MSPs of the family, but not necessarily found in all (well, CPU and clock system are always there :) )

With help of asktexas (www.ti.com/asktexas) I found next answer:

AES module is present only for MSP430F52xx family: http://www.ti.com/tool/AES-128#Technical%20Documents

For another family is possible to implement software AES: http://www.ti.com/apps/docs/litabsmultiplefilelist.tsp?literatureNumber=slaa397a&docCategoryId=1&appId=246

Olesky,

Unfortunately you have been misinformed. the link you refer to is for a SW implementation of AES-128. The AES HW module is not present on current F5xxx series devices. It is present on some F6xxx series devices, FR59xx devices (Wolverine), and some CC430 series devices. The application note linked within the AES-128 page you linked to will give you benchmarks for the SW algorithm, which can be used on any MSP430 series. That being said, there is a typo on the benchmark chart for AES. On the AES (ENC/DES Function) side, Optimization-Speed column, Clock Cycles row, the table read 79 kilo-cycles. The table should read 7.9 kilo-cycles. This will be updated on the next revision of the application note, but I wanted to highlight it here.

Best Regards,

JH