
3: COMMANDS AND COMMAND REGISTERS
S1D13700 Technical Manual
EPSON
23
[Parameter P5]
qTC/R
The condition [TC/R]
≥ [C/R] + 4 must always be met.
To minimize the amount of current consumed by the S1D13700 and LCD unit for a given
display capacity, the S1D13700’s oscillation frequency (fosc) must be adjusted. Moreover,
because the one-frame time (1/fFR) must be made constant to prevent icker, dene [TC/R]
according to the equation to calculate [TC/R] as described in Chapter 4 and adjust the
S1D13700’s divide-by-n ratio.
[Parameter P6]
qL/F
Denes the display interval in the Y direction by indicating the number of display lines per
screen.
Note: When W/S = 1, [L/F] must be dened as an even number because dual-screen
display is assumed.
HEX
BIN
Characters per line
[TC/R]
D7 D6 D5 D4 D3 D2 D1 D0
00
01
52
FE
FF
00000000
00000001
01010010
11111110
11111111
1
2
83
255
256
HEX
BIN
Number of lines
per screen
D7 D6 D5 D4 D3 D2 D1 D0
00
01
7F
FE
FF
00000000
00000001
01111111
11111110
11111111
1
2
128
255
256