The ZR36011 Digital Color Space Convertor performs forward or inverse conversions between RGB and YCbCr color spaces. It is intended for use as a building block in systems that require this function. The direction of the conversion (RGB to YCbCr or YCbCr to RGB), and all other operating mode options, are determined by the states of control inputs. The 24-bit RGB and YCbCr data buses are bidirectional, making for straightforward interfacing when the direction of signal flow is reversible, as in a video compression and expansion module. Conversion between CyMaYe (Cyan, Magenta, Yellow) and YCbCr color spaces is also supported. An additional conversion stage, between RGB and CyMaYe color spaces, is inserted in this case, thus redefining the R, G, B pins as Cy, Ma, Ye. The color space conversion coefficients are fixed. One of two sets of coefficients can be selected: one suitable for component