S1D13305D00A EPSON [Epson Company], S1D13305D00A Datasheet - Page 31

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

8.2.1.8. 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.
8.2.1.9. FY
Sets the vertical character size. 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 4. Vertical character size selection
Table 5. Display line address range
S1D13305 Series
Technical Manual
HEX
0E
0F
00
01
07
HEX
EE
EF
4F
00
01
D3 D2 D1 D0
0
0
0
1
1
FY
D7
0
0
0
1
1
0
0
1
1
1
0
0
1
1
1
D6
0
0
1
1
1
0
1
1
0
1
D5
0
0
0
1
1
height (pixels)
[FY] character
C/R
D4
0
0
0
0
0
15
16
1
2
8
D3
0
0
1
1
1
D2
0
0
1
1
1
EPSON
D1
0
0
1
1
1
8.2.1.10. C/R
Sets the address range covered by one display line, that is,
the number of characters less one, multiplied by the
number of horizontal bytes per character.
C/R can range from 0 to 239.
For example, if the character width is 10 pixels, then the
address range is equal to twice the number of characters,
less 2. See Section 16.1.1 for the calculation of C/R.
[C/R] cannot be set to a value greater than the address
range. It can, however, be set smaller than the address
range, in which case the excess display area is blank. The
number of excess pixels must not exceed 64.
D0
0
1
1
0
1
[C/R] bytes per display line
INSTRUCTION SET
239
240
80
1
2
25