Tadārammana-citta: 'registering consciousness' see: Tab. I, 40-49, 56, is the last stage in the complete process of cognition citta-vīthi immediately before sinking into the subconscious. It does not occur with the consciousness of the absorptions nor with supra-mundane consciousness, but only with large or distinct objects of the sense-sphere.
Maha Thera Nyanatiloka. Manual of Buddhist Terms and Doctrines, Buddhist Publication Society, first edition 1952.