Epson S1D13706 Technical Manual page 199

Epson Research and Development
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REG[78h] Main Window Line Address Offset Register 0
Bit 7 Bit 6
REG[79h] Main Window Line Address Offset Register 1
n/a n/a
Note
Note
REG[7Ch] Sub-Window Display Start Address Register 0
Bit 7 Bit 6
REG[7Dh] Sub-Window Display Start Address Register 1
Bit 15 Bit 14
REG[7Eh] Sub-Window Display Start Address Register 2
n/a n/a
Programming Notes and Examples
Issue Date: 01/02/23
Bit 5 Bit 4
n/a
These registers indicate the number of dwords per line in the main window image (typically
the panel width).
number of dwords per line = image width ÷ (32 ÷ bpp)
The image width must be a multiple of 32 ÷ bpp. If the panel width is not such a multi-
ple, a slightly larger width is chosen.
Round up to the nearest integer all line address values that have fractional parts.
Bit 5 Bit 4
Bit 13 Bit 12
n/a
These registers represent a dword address which points to the start of the sub-window
image in the display buffer. An address of 0 is the start of the display buffer. For the
following SwivelView mode descriptions, the desired byte address is the starting display
address for the sub-window image, and panel width and panel height refer to the physical
panel dimensions. Width and height are used respective to the given SwivelView mode. For
example, the sub-window height in SwivelView 90° is the sub-window width in
SwivelView 180°.
In SwivelView 0°, program the start address
= desired byte address ÷ 4.
In SwivelView 90°, program the start address
= ((desired byte address + (sub-window width × bpp ÷ 8)) ÷ 4) - 1
Bit 3
n/a n/a
Bit 3
Bit 11
n/a n/a
Bit 2 Bit 1
n/a Bit 9
Bit 2 Bit 1
Bit 10 Bit 9
n/a n/a
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Bit 0
Bit 8
Bit 0
Bit 8
Bit 16
S1D13706
X31B-G-003-03