Epson S1D13700 User's & Technical Manual page 27

Lcd controller ics
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3: COMMANDS AND COMMAND REGISTERS
[Parameter P3]
FY
Defines the size of the character field in the Y direction.
[Parameter P4]
C/R
Defines the display interval in the X direction by indicating the number of display characters
counted in address units, as described in the section on parameter FX. When [FX] = 10 dots, for
example, two memory addresses are counted per character. For details on how to calculate the
[C/R] value, see Section 4.1.6 "Determining Various Parameters" on page 64. The value set for
this parameter cannot be greater than the calculated [C/R] value, but can be equal to or less than
the calculated [C/R] value. In that case, excess display sections are left blank.
Note: 1. Make sure the number of dots in excess display sections is within 64.
22
HEX
D3 D2 D1 D0
00
0
0
01
0
0
07
0
1
0E
1
1
0F
1
1
BIN
HEX
D7 D6 D5 D4 D3 D2 D1 D0
00
0
0
0
0
01
0
0
0
0
4F
0
1
0
0
EE
1
1
1
0
EF
1
1
1
0
2. For grayscale to be set to 2 Bpp or 4 Bpp, the set value of CR must be in-
creased.
CR (bytes) = [ (Panel Width) /8pixel character]*Bpp
BIN
Number of dots
[FX]
0
0
1
0
1
2
1
1
8
1
0
15
1
1
16
Characters per line
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
1
1
1
1
EPSON
[C/R]
1
2
80
239
240
S1D13700 Technical Manual

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