Epson Research and Development
Page 57
Vancouver Design Center
Table 9-1: SwivelView Enable Bits
SwivelView Enable SwivelView Enable Display Rotated
Bit 1
Bit 0
(degrees)
0
0
1
1
0
1
0
1
0
90
180
270
REG[046h] LCD Memory Address Offset Register 0
Bit 7 Bit 6 Bit 5 Bit 4
Bit 3
Bit 2
Bit 1
Bit 9
Bit 0
Bit 8
REG[047h] LCD Memory Address Offset Register 1
n/a n/a n/a n/a
n/a
Bit 10
The LCD Memory Address Offset Registers must be adjusted according to the desired
SwivelView rotation and color depth. Set the LCD Memory Address Offset Registers based
on the values provided for each color depth in the following table. Panel Width (PW) is the
horizontal panel size in pixels (i.e. for a 640x480 panel, PW is 640 regardless of the display
rotation).
Table 9-2: LCD Memory Address Offset Values
SwivelView Enable
Memory Address Offset Value
Display Rotated
Bit 1
Bit 0
15/16 bpp
PW
8 bpp
PW ÷ 2
512
0
0
1
1
0
1
0
1
0 degrees
90 degrees
180 degrees
270 degrees
1024
PW
PW ÷ 2
512
1024
Programming Notes and Examples
Issue Date: 01/02/06
S1D13506
X25B-G-003-03
EPSON [ EPSON COMPANY ]
