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. 17. The system of claim 15 , wherein the controller includes latches configured to produce the first transfer word and the second transfer word in dependence on the first color data, the second color data, and the third color data per pixel.