S1D13705 Epson Electronics America, Inc., S1D13705 Datasheet - Page 85

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

Epson Research and Development
Vancouver Design Center
12.2.1 How to Set Up Alternate SwivelView Mode
Hardware Functional Specification
Issue Date: 01/05/22
The following describes the register settings needed to set up Alternate SwivelView Mode
for a 320x480x4 bpp image.
• Select Alternate SwivelView Mode:
• 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 image width in
• Panning is achieved by changing the Screen 1 Start Address register:
REG[1Bh] bit 7 = 1 and bit 6 = 1
register must be programmed with the address of pixel “B”, or
bytes, i.e.
• Increment the register by 1 to pan horizontally by one byte, e.g. two pixels in 4 bpp
• Increment the register by the value in the Line Byte Count register to pan vertically by
REG[10h], REG[0Dh], REG[0Ch]
mode
one line, e.g. add A0h to pan by one line 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.
REG 1Ch
=
----------------------------------------- -
8bpb
320
4bpp
=
=
=
=
AddressOfPixelB
AddressOfPixelA
AddressOfPixelA
AddressOfPixelA
=
320
-------- -
2
=
160
=
+
+
+
A0h
9Fh
ByteOffset
320pixels
--------------------------------------------
8bpb
4bpp
–
1
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S1D13705
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