29.3.1 Initialization

The following bits are enable-protected, meaning that they can only be written when the corresponding even LUT is disabled (ENABLE = ‘0’ in CCL.LUT0CTRLA):

  • Sequential Selection (SEQSEL) in Sequential Control 0 (CCL.SEQCTRL0) register

The following registers are enable-protected, meaning that they can only be written when the corresponding LUT is disabled (ENABLE = ‘0’ in CCL.LUT0CTRLA):

  • LUT n Control x (CCL.LUTnCTRLx) register, except the ENABLE bit

Enable-protected bits in the CCL.LUTnCTRLx registers can be written at the same time as the ENABLE bit in CCL.LUTnCTRLx is written to ‘1’, but not at the same time as the ENABLE bit is written to ‘0’.

The enable-protection is denoted by the enable-protected property in the register description.