ETMFXLOW

Parameter name	Value range	STD value
ETMFXLOW	127...256	256

Tasks with an external priority greater than or equal to ETMFXLOW are not affected by aging in processor state TU. This means that for these tasks the dynamic setting of the internal priority (see section "Prior concept") is deactivated. Any increase in priority acquired in processor state TPR becomes invalid on transition to TU.

Tasks with an external priority greater than or equal to ETMFXLOW are suitable for definition of a background load. For the main application(s) a correspondingly large external priority difference must be selected. This function must be used very carefully and its effects must be monitored.