The configuration of the LUTs and sequencers is enable-protected, meaning that they can
only be configured when the corresponding even LUT is disabled (ENABLE=‘0’
in the LUT n Control A (CCL.LUTnCTRLA) register). This is a mechanism to suppress the
undesired output from the CCL under (re-)configuration.
The following bits and registers are enable-protected:
The enable-protected bits in the
CCL.LUTnCTRLx registers can be written at the same time as ENABLE in CCL.LUTnCTRLA is
written to ‘1’
, but not at the same time as ENABLE is written to
‘0’
.
The enable protection is denoted by the enable-protected property in the register description.