HD66773R Datasheet, PDF (44/133 Pages) Renesas Technology Corp – 262,144-color, 132 x 176-dot Graphics Controller Driver for TFT LCD panels

HD66773R
Vertical Scroll Control (R11h)
R/W RS
W1
IB15 IB14 IB13 IB12 IB11 IB10
00000 0
IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
0 0 _{VL7 VL6 VL5 VL4 VL3 VL2 VL1} VL0
VL7–0: Specify the number of raster-rows to be scrolled and control smooth scrolling in the vertical
direction. The number of raster-rows is specified between 0 to 176, the raster-rows of the specified number
are scrolled during display. When the 176th raster-row is displayed, the scrolling display starts afresh from
the 1st raster-row. The number of raster-rows to be scrolled (VL7–0) can be specified when the first screen
vertical scroll enable bit VLE1 = 1 or the second screen vertical scroll enable bit VLE2 = 1. The number of
raster-rows is fixed (not changeable) when VLE2-1 = 00.
VL7 VL6 VL5 VL4 VL3 VL2 VL1 VL0 Amount of Scrolling (Number of raster-row)
0
0
0
0
0
0
0
0
0 raster-row
0
0
0
0
0
0
0
1
1 raster-row
0
0
0
0
0
0
1
0
2 raster-rows
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1
1
1
0
1
1
1
0
174 raster-rows
1
1
1
0
1
1
1
1
175 raster-rows
Note: When setting the number of raster-rows for scrolling, it must be 175 (“AF”h) or less.
1st-Screen Drive Position (R14h)
2nd-Screen Drive Position (R15h)
R/W RS
W1
IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
SE17 SE16 SE15 SE14 SE13 SE12 SE11 SE10 SS17 SS16 SS15 SS14 SS13 SS12 SS11 SS10
W 1 SE27 SE26 SE25 SE24 SE23 SE22 SE21 SE20 SS27 SS26 SS25 SS24 SS23 SS22 SS21 SS20
SS17–10: Specify the start position for driving the first screen by line. The liquid crystal is driven by from
the gate driver of “the set value + 1”.
SE17–10: Specify the end position for driving the first screen by line. The liquid crystal is driven by to the
gate driver of “the set value + 1”. For instance, when SS17–10 = “07”H and SE17–10 = “10”H, the liquid
crystal is driven from G8 to G17, and black display is driven from G1 to G7, and G18 thereafter. Make
sure that SS17–10 ≤ SE17–10 ≤ “AF”H. For details, see “Screen-split Drive Function”.
SS27–20: Specify the start position for driving the second screen by line. The liquid crystal is driven by
from the gate driver of “the set value + 1”. The second screen is driven when SPT = 1.
Rev.1.10, Jun.21.2003, page 44 of 133