SED1330F Datasheet, PDF (45/148 Pages) List of Unclassifed Manufacturers – LCD Controller ICs

3.3.5.2 – 3.3.7.1
3.3.5.2 DM1, DM2
DM1 and DM2 specify the display mode of screen
blocks 1 and 3, respectively.
DM1/2 = 0: Text mode
DM1/2 = 1: Graphics mode
Note 1: Screen blocks 2 and 4 can only display graphics.
Note 2: DM1 and DM2 must be the same, regardless of the
setting of W/S.
3.3.5.3 OV
Specifies two- or three-layer composition in graphics
mode.
OV = 0: Two-layer composition
OV = 1: Three-layer composition
Set OV to 0 for mixed text and graphics mode.
3.3.6 CGRAM ADR
Specifies the CG RAM start address.
MSB
LSB
C01011100
P1 A7 A6 A5 A4 A3 A2 A1 A0 (SAGL)
P2 A15 A14 A13 A12 A11 A10 A9 A8 (SAGH)
Figure 25. CGRAM ADR parameters
Note: See Section 6 for information on the SAG parameters.
3.0 Command Description
3.3.7 HDOT SCR
While the scroll command only allows scrolling by
characters, HDOT SCR allows the screen to be scrolled
horizontally by pixels. HDOT SCR cannot be used on
individual layers.
MSB
LSB
C0 10 1 1 0 10
P1 0 0 0 0 0 D2 D1 D0
Figure 26. HDOT SCR parameters
3.3.7.1 D0 to D2
Specifies the number of pixels to scroll. The C/R
parameter has to be set to one more than the number
of horizontal characters before using HDOT SCR.
Smooth scrolling can be simulated if the controlling
microprocessor repeatedly issues the HDOT SCR
command to the SED1330F/1335F/1336F. See Sec-
tion 5.5 for more information on scrolling the display.
Table 20. Scroll step selection
HEX
00
01
02
↓
06
07
P1
D2 D1 D0
000
001
010
↓↓↓
110
111
Number of pixels
to scroll
0
1
2
↓
6
7
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