8.1.5.2.5 User Signature

The memory has 8 x 4 Kbytes of additional user reprogrammable pages. The ROM code uses the User Signature Area [0]. The User Signature Area [0] is locked for read/erase/write before starting the customer application in Flash. The User Signature Areas [1…7] can be used by the customer. User Signature Areas 0 to 3 erase upon hardware erase signal assertion. User signature areas 4 to 7 are not erased.