15. A system, comprising: a controller configured accept an input video signal that includes first color data, second color data, and third color data per pixel; produce a first transfer word and a second transfer word in dependence on the first color data, the second color data, and the third color data per pixel; transmit the first transfer word to a laser diode driver (LDD) over a multi-bit wide bus during a first portion of one cycle of a data transfer clock signal; and transmit the second transfer word to the LDD over the same multi-bit wide bus during a second portion of the same one cycle of the data transfer clock.
15. A system, comprising: a controller configured accept an input video signal that includes first color data, second color data, and third color data per pixel; produce a first transfer word and a second transfer word in dependence on the first color data, the second color data, and the third color data per pixel; transmit the first transfer word to a laser diode driver (LDD) over a multi-bit wide bus during a first portion of one cycle of a data transfer clock signal; and transmit the second transfer word to the LDD over the same multi-bit wide bus during a second portion of the same one cycle of the data transfer clock. 24. The system of claim 15 , wherein: one of the first and second transfer words includes all bits of the first color data word, and some bits of the second color data word; and the other one of the first and second transfer words includes all bits of the third color data word, and the remaining bits of the second color data word.