The TL855 accepts MPEG compressed data encoded in the 4:2:2 format. Four Y, two Cb and two Cr values are generated for every four pixels decoded. Compared to 4:2:0 decoding, 4:2:2 decoding generates two extra chroma components requiring a considerable increase in performance over 4:2:0 consumer decoders. Therefore the TL855 memory interface, the MPEG decoder core engine and the display controller must be highly tuned for 4:2:2 processing. The memory interface has twice the buffering of conventional 4:2:0 decoders to handle the extra amount of chroma component during writes and reads. The MPEG decoder engine decodes the extra chroma values. The display controller accepts 4:2:2 data from the SDRAM as decoded by the MPEG decoder engine, then displays this higher quality video on the screen.