Cirrus Logic EP93 Series User Manual page 255

RATE:
LUT Registers
GrySclLUTR,
GrySclLUTG,
GrySclLUTB
31 30 29 28
15 14 13 12
Address: GrySclLUTR - 0x8003_0080 through 0x8003_00FC
GrySclLUTG - 0x8003_0280 through 0x8003_02FC
GrySclLUTB - 0x8003_0300 through 0x8003_037C
Default: 0x0000_FFFF in offset locations 0x7, 0x15, 0x23, and 0x31
0x0000_0000 in all other locations
Definition: Grayscale Look-Up-Tables
Bit Descriptions:
RSVD:
FRAME:
DS785UM1
Raster Engine With Analog/LCD Integrated Timing and Interface
When EN = '0' and the 2-bit cursor pixel fetched from
SDRAM is '10',
cursor image.
When EN = '0' and the 2-bit cursor pixel fetched from
SDRAM is '11',
cursor image.
Rate - Read/Write
When EN = '1', the Rate value written to this field specifies
the number of video frames that will occur before switching
between CursorColor1 or CursorColor2, and
CursorBlinkColor1 or CursorBlinkColor2, respectively.
An on/off cursor blink cycle is controlled by the equation:
Blink Cycle =
27 26 25 24
RSVD
11 10 9 8
D
Reserved - Unknown during read
Frame Counter Selection - Read/Write
Copyright 2007 Cirrus Logic
CursorColor1, is used for the non-blinking
CursorColor1, is used for the non-blinking
2 x (1/VCLK) x HClkTotal.Total x
VLinesTotal.Total x (255 - RATE)
23 22 21 20
7 6 5 4
EP93xx User's Guide
19 18 17 16
FRAME VERT HORZ
3 2 1 0
7-73
7