RSA memory remapping register
| RSA_MEM_PD | Set this bit to power down RSA memory. This bit has the lowest priority. When Digital Signature occupies the RSA, this bit is invalid. |
| RSA_MEM_FORCE_PU | Set this bit to force power up RSA memory. This bit has the second highest priority. |
| RSA_MEM_FORCE_PD | Set this bit to force power down RSA memory. This bit has the highest priority. |