Table 8-35: Setting Swivelview Modes; Table 8-36: Display Mode Selection; Common Display Mode Register - Epson S1D13506 Technical Manual

Page 172

8.3.16 Common Display Mode Register

Display Mode Register
REG[1FCh]
SwivelView™
n/a
Enable Bit 0
bit 6
SwivelView Enable Bits
SwivelView Enable Bit 0
(REG[1FCh] bit 6)
SwivelView Enable Bit 1
(REG[040h] bit 4)
bits 2-0
Display Mode Select Bits [2:0]
S1D13506
X25B-A-001-12
n/a
SwivelView™ Enable Bit 0
When this bit = 1, the LCD and CRT display image is rotated 90° clockwise. Please refer
to Section 15, "SwivelView™" on page 200 for application and limitations.
When this bit = 0, there is no hardware effect.
This bit in conjunction with SwivelView™ Enable Bit 1 achieves the following hardware
rotations.

Table 8-35: Setting SwivelView Modes

Normal
0
0
Display Mode Select Bits [2:0]
These bits select the display model according to the following table. The LCD display
mode is enabled/disabled using bit 0. Programming this bit from a 0 to a 1 starts the
power-on sequence. Programming this bit from a 1 to a 0 starts the power-off sequence.

Table 8-36: Display Mode Selection

000
001
010
011
100
101
110
111
Note
REG[018h] bit 7 must be set to 1 when the flicker filter is enabled.
Note
The Flicker Filter reduces the "flickering" effect seen on interlaced displays by averag-
ing adjacent lines on the TV display. This "flickering" is caused by sharp vertical image
transitions that occur over one line (1 vertical pixel). For example, one pixel high lines,
edges of window boxes, etc. Flickering occurs because these high resolution lines are ef-
fectively displayed at half the refresh frequency due to interlacing.
Display Mode
n/a n/a
SwivelView
SwivelView 90°
1
0
Display Mode Enabled
EISD (CRT and LCD)
TV with flicker filter off
EISD (TV with flicker filter off and LCD)
TV with flicker filter on
EISD (TV with flicker filter on and LCD)
Epson Research and Development
Vancouver Design Center
Display Mode
Select Bit 2 Select Bit 1
™
Modes
SwivelView 180° SwivelView 270°
0
1
no display
LCD only
CRT only
Hardware Functional Specification
Issue Date: 02/03/26
RW
Display Mode
Select Bit 0
1
1