9.6.1 Registers Properties

Registers can be 8, 16, or 32 bits wide. Atomic 8, 16, and 32-bit accesses are supported. In addition, the 8-bit quarters and 16-bit halves of a 32-bit register, and the 8-bit halves of a 16-bit register can be accessed directly.

PAC Write-Protection Register Property:

Some registers are optionally write-protected by the Peripheral Access Controller (PAC).

PAC write protection is denoted by the "PAC Write-Protection" property in each individual register description.

For more details, refer to the PAC - Peripheral Access Controller.

Read-Synchronized, Write-Synchronized Register Property:

Some registers (or bit fields within a register) require synchronization when read and/or written.

Synchronization is denoted by the "Read-Synchronized" ("Read-Synchronized Bits”), and the "Write-Synchronized" ("Write-Synchronized Bits”) property in each individual register description.

For more details, refer to Register Synchronization.

Enable-Protected Register Property:

Some registers or bit fields within a register can only be written when the peripheral is disabled.

Such protection is denoted by the "Enable-Protected" or "Enable-Protected Bits" property in each individual register description.