Epson S1D13504 manual Memory Organization for 15 Bit-per-pixel 32768 Colors

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3.2.5 Memory Organization for 15 Bit-per-pixel (32768 Colors)

One pixel is stored in two bytes of display buffer as shown below:

Table 3-5: Pixel Storage for 15 bpp (32768 Colors) in Two Bytes of Display Buffer

Bit 15	Bit 14	Bit 13	Bit 12	Bit 11	Bit 10	Bit 9	Bit 8
Reserved	Red Bit 4	Red Bit 3	Red Bit 2	Red Bit 1	Red Bit 0	Green Bit 4	Green Bit 3
Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
Green Bit 2	Green Bit 1	Green Bit 0	Blue Bit 4	Blue Bit 3	Blue Bit 2	Blue Bit 1	Blue Bit 0

As shown above, the 32768 color pixel is divided into four parts: five bits for red, five bits for green, and five bits for blue and one reserved bit. The output bypasses the LUT and goes directly into the Frame Rate Modulator. Although 15 bit-per-pixel only make sense for a color panel, this memory model can be set on a monochrome panel, however only 16 shades of gray will be visible.

3.2.6 Memory Organization for 16 Bit-per-pixel (65536 Colors)

One pixel is stored in two bytes of display buffer as shown below:

Table 3-6: Pixel Storage for 16 bpp (65536 Colors) in Two Bytes of Display Buffer

Bit 15	Bit 14	Bit 13	Bit 12	Bit 11	Bit 10	Bit 9	Bit 8
Red Bit 4	Red Bit 3	Red Bit 2	Red Bit 1	Red Bit 0	Green Bit 5	Green Bit 4	Green Bit 3
Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
Green Bit 2	Green Bit 1	Green Bit 0	Blue Bit 4	Blue Bit 3	Blue Bit 2	Blue Bit 1	Blue Bit 0

As shown above, the 65536 color pixel is divided into three parts: five bits for red, six bits for green, and five bits for blue. The output bypasses the LUT and goes directly into the Frame Rate Modulator. Although 16 bit-per-pixel only make sense for a color panel, this memory model can be set on a monochrome panel, however only 16 shades of gray will be visible.

S1D13504	Programming Notes and Examples
X19A-G-002-07	Issue Date: 01/02/01