63.6 Register Accesses

Register accesses support 8-bit, 16-bit and 32-bit access, allowing, for example, an 8-bit part of a 32-bit register to be written in one access. To do so, the access must be done with the right size at the right address.

8-bit, 16-bit and 32-bit accesses are supported for register accesses. However, a field in a register cannot be partially written (for example, if a field is bigger than 8 bits, the whole field must be written).

This feature avoids a read-modify-write process if only a small part of the register is to be modified.