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Epson Research and Development Page 135
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Hardware Functional Specification S1D13708
Issue Date: 02/03/07 X39A-A-001-02
bits 2-0 Bit-per-pixel Select Bits [2:0]
These bits select the color depth (bit-per-pixel) for the displayed data for both the main
window and the PIP
+
window (if active).
1, 2, 4 and 8 bpp modes use the 18-bit LUT, allowing maximum 256K colors. 16 bpp
mode bypasses the LUT, allowing only 64K colors.
bit 7 Display Data Word Swap
The display pipe fetches 32-bits of data from the display buffer. This bit enables the lower
16-bit word and the upper 16-bit word to be swapped before sending them to the LCD dis-
play. If the Display Data Byte Swap bit is also enabled, then the byte order of the fetched
32-bit data is reversed.
Note
For further information on byte swapping for Big Endian mode, see Section 17, “Big-
Endian Bus Interface” on page 212.
Table 8-9: LCD Bit-per-pixel Selection
Bit-per-pixel
Select Bits [2:0]
Color Depth (bpp)
Maximum Number of Colors/Shades Max. No. Of
Simultaneously
Displayed
Colors/Shades
Passive Panel
(Dithering On)
TFT Panel
000 1 bpp 256K/64 256K/64 2/2
001 2 bpp 256K/64 256K/64 4/4
010 4 bpp 256K/64 256K/64 16/16
011 8 bpp 256K/64 256K/64 256/64
100 16 bpp 64K/64 64K/64 64K/64
101, 110, 111 Reserved n/a n/a n/a
Special Effects Register
REG[71h] Read/Write
Display Data
Word Swap
Display Data
Byte Swap
n/a
PIP
+
Window
Enable
n/a
SwivelView Mode Select
Bits 1-0
76543 210