Packed Pixel Stream, 16-bit Format, Long packet, Data Type 00 1110 (0Eh)

Packed Pixel Stream 16-Bit Format is a Long packet used to transmit image data formatted as 16-bit pixels to a Video Mode display module. The packet consists of the DI byte, a two-byte WC, an ECC byte, a payload of length WC bytes and a two-byte checksum. Pixel format is five bits red, six bits green, five bits blue, in that order. Note that the “Green” component is split across two bytes. Within a color component, the LSB is sent first, the MSB last.

With this format, it is strongly recommended that TOTAL line width be a multiple of one pixel (two bytes) and that timing in the host display controller use that time unit for its activity, including assertion of Transmit Request to its PHY layer. This ensures that every scan line has the same synchronous relationship between the Byte clock and Pixel clock.

 Normally, the display has no frame buffer of its own, so all image data shall be supplied by the hostprocessor at a sufficiently high rate to avoid flicker or other visible artifacts.