S1D13305D00A EPSON [Epson Company], S1D13305D00A Datasheet - Page 30

• Manufacturer Part Number: S1D13305D00A
• Description: LCD Controller ICs
• Manufacturer: EPSON [Epson Company]

INSTRUCTION SET
The IV flag causes the S1D13305 series to offset the text
screen against the graphics back layer by one vertical
pixel. Use the horizontal pixel scroll function (HDOT
SCR) to shift the text screen 1 to 7 pixels to the right. All
characters will then have the necessary surrounding back-
ground pixels that ensure easy reading of the inverted
characters.
See Section 10.5 for information on scrolling.
IV = 0: Screen top-line correction
IV = 1: No screen top-line correction
24
Display start point
Back layer
HDOT SCR
Character
Figure 5. IV and HDOT SCR adjustment
Dots 1 to 7
FY
IV
Address A
8 bits
Figure 6. FX and FY display addresses
FX
Address B
8 bits
1 dot
EPSON
Non-display area
8.2.1.7. FX
Define the horizontal character size. The character width
in pixels is equal to FX + 1, where FX can range from 00
to 07H inclusive. If data bit 3 is set (FX is in the range 08
to 0FH) and an 8-pixel font is used, a space is inserted
between characters.
Table 3. Horizontal character size selection
Since the S1D13305 series handles display data in 8-bit
units, characters larger than 8 pixels wide must be formed
from 8-pixel segments. As Figure 6 shows, the remainder
of the second eight bits are not displayed. This also
applies to the second screen layer.
In graphics mode, the normal character field is also eight
pixels. If a wider character field is used, any remainder in
the second eight bits is not displayed.
HEX
00
01
07
FY
D3 D2 D1 D0
0
0
0
8 bits
FX
0
0
1
FX
0
0
1
8 bits
0
1
1
[FX] character width
(pixels)
S1D13305 Series
Technical Manual
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