S1D13705 Epson Electronics America, Inc., S1D13705 Datasheet - Page 83

• Manufacturer Part Number: S1D13705
• Description: S1d13705 Embedded Memory Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Epson Research and Development
Vancouver Design Center
12.1.1 How to Set Up Default SwivelView Mode
Hardware Functional Specification
Issue Date: 01/05/22
REG 1Ch
Note
The following describes the register settings needed to set up Default SwivelView Mode
for a 240x320x8 bpp image:
• Select Default SwivelView Mode: REG[1Bh] bit 7 = 1 and bit 6 = 0
• The display refresh circuitry starts at pixel “B”, therefore the Screen 1 Start Address
• The Line Byte Count Register for SwivelView Mode must be set to the virtual-image
• Panning is achieved by changing the Screen 1 Start Address register:
register must be programmed with the address of pixel “B”, i.e.
width in bytes, i.e.
• Increment the register by 1 to pan horizontally by one byte, e.g. one pixel in 8 bpp
• Increment the register by twice the effective value of the Line Byte Count register to
Vertical panning by a single line is not supported in Default SwivelView Mode.
REG[10h], REG[0Dh], REG[0Ch]
mode
pan vertically by two lines, e.g. add 200h to pan by two lines in the example above.
=
Where bpp is bits-per-pixel and bpb is bits-per-byte.
----------------------------------------- -
Where bpb is bits-per-byte and bpp is bits-per-pixel.
8bpb
256
8bpp
=
256
-------- -
1
=
=
=
=
=
256
AddressOfPixelB
AddressOfPixelA
AddressOfPixelA
AddressOfPixelA
=
00h
:see REG[1Ch] for explanat i o n
+
+
+
EFh
ByteOffset
240pixels
--------------------------------------------
8bpb
8bpp
–
1
X27A-A-001-09
S1D13705
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