S1D13700F01 Epson Electronics America, Inc., S1D13700F01 Datasheet - Page 118

• Manufacturer Part Number: S1D13700F01
• Description: Embedded Memory Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 118
15.4 Layered Display Attributes
15.4.1 Inverse Display
S1D13700F01
X42A-A-002-04
Local flashing
Ruled line
Half-tone
Attribute
Reverse
Note
S1D13700F01 incorporates a number of functions for enhancing displays using
monochrome LCD panels. It allows the display of inverse characters, half-intensity menu
pads and flashing of selected screen areas. These functions are controlled by REG[18h]
Overlay Register and REG[0Ah] Display Attribute Register.
These effects can be achieved in different ways, depending on the display configuration.
The following sections describe these functions.
For inverse display where the first layer is text and the second layer is graphics.
1. CSRW, CSRDIR, MWRITE
2. OVLAY: MX0 = 1, MX1 = 0 (REG[18h] bits 1-0)
3. DISP ON/OFF: FP0 = 1, FP1 = 0, FP2 = 1, FP3 = 0.
0
MX1
0
0
0
0
0
Not all functions can be used in one layer at the same time.
Write to the graphics screen at the area to be inverted.
Set the layer compensation method of the two layers to Exclusive-OR.
Turn on layers 1 and 2 with no flashing.
MX0
0
1
0
1
0
1
Figure 15-6 Layer Synthesis
IV
ME
BL
RL
Combined Layer
Display
Revision 4.05
EPSON
Yes, No
Error
LINE
LINE
IV
ME
BL
RL
1st Layer Display
EPSON
Yes, No
LINE
LINE
Epson Research and Development
Hardware Functional Specification
2nd Layer Display
Vancouver Design Center
Issue Date: 2005/12/13
Error