Epson S1D13706 - Page 201

Epson Research and Development
Page 41
Vancouver Design Center
Programming Notes and Examples S1D13706
Issue Date: 01/02/23 X31B-G-003-03
These bits determine the X start position of the sub-window in relation to the origin of the
panel. Due to the S1D13706 SwivelView feature, the X start position may not be a
horizontal position value (only true in 0° and 180° SwivelView). For further information
on defining the value of the X Start Position registers, see Section 8.3, “Picture-In-Picture-
Plus Examples” on page 48.
The registers are also incremented differently based on the SwivelView orientation. For 0°
and 180° SwivelView the X start position is incremented by X pixels where X is relative to
the current color depth.
For 90° and 270° SwivelView the X start position is incremented in 1 line increments.
In SwivelView 0°
, these registers set the horizontal coordinates (x) of the sub-windows’s
top left corner. Increasing values of x move the top left corner towards the right in steps of
32
÷
bits-per-pixel (see Table 8-1: ).
Program the Sub-Window X Start Position registers so that
sub-window X start position registers = x
÷
(32
÷
bits-per-pixel)
Note
x must be a multiple of 32
÷
bits-per-pixel.
In SwivelView 90°
, these registers set the vertical coordinates (y) of the sub-window’s top
right corner. Increasing values of y move the top right corner downward in steps of 1 line.
Program the Sub-Window X Start Position registers so that
sub-window X start position registers = y
REG[84h] Sub-Window X Start Position Register 0
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
REG[85h] Sub-Window X Start Position Register 1
n/an/an/an/an/an/aBit 9Bit 8
Table 8-1: 32-bit Address Increments for Color Depth
Bits-per-pixel (Color Depth) Pixel Increment (X)
1 bpp 32
2 bpp 16
4 bpp 8
8 bpp 4
16 bpp 2