SED1330F Datasheet, PDF (33/148 Pages) List of Unclassifed Manufacturers – LCD Controller ICs

3.2.1.10 – 3.2.1.11
3.0 Command Description
FX
FY
8 bits
8 bits
FX
FY
8 bits
8 bits
Address A Address B
Non-display area
Figure 12. FX and FY display addresses
3.2.1.10 WF
Selects the AC frame drive waveform period. WF is
usually set to 1.
WF = 0: 16-line AC drive
WF = 1: two-frame AC drive
In two-frame AC drive, the WF period is twice the
frame period.
In 16-line AC drive, WF inverts every 16 lines.
Although 16-line AC drive gives a more readable
display, horizontal lines may appear when using high
LCD drive voltages or at high viewing angles.
3.2.1.11 FY
Sets the height, in pixels, of the character. The height
in pixels is equal to FY + 1.
FY can range from 00 to 0FH inclusive.
Set FY to zero (vertical size equals one) when in
graphics mode.
Table 5. Vertical character size selection
HEX
00
01
↓
07
↓
0E
0F
FY
D3 D2 D1 D0
0000
0001
↓↓↓↓
0111
↓↓↓↓
1110
1111
[FY] character
height (pixels)
1
2
↓
8
↓
15
16
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