S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 239

• Manufacturer Part Number: S1D1
• Description: LCD Controller-driver With Built-in Character ROM
• Manufacturer: Epson Electronics America, Inc.

S1D15600/601/602 Series
7–44
(11) Duty Select
Selects the LCD driver duty.
Since this is independent from contents of the output
status register, the duty must be selected according to the
LCD output status.
In multi-chip configuration, the master and slave devices
must have the same duty.
(12) Duty + 1
Increases the duty by 1. If 1/48 or 1/64 duty is selected
in the S1D15600 for example, 1/49 or 1/65 is set, respec-
tively and COM1 functions as either the COM48 or
COM64 output. The display line always accesses the
RAM area corresponding to page address 8, D0. (Refer
to Figure 4.)
In multi-chip configuration, the Duty + 1 command must
be executed to both the master and slave sides.
A
A
0
0
0
S1D15600
S1D15601
S1D15602
0
S1D15600
S1D15601
S1D15602
Model
Model
RD WR
RD WR
E
1
E
1
R/W
R/W
0
0
D
D
1
1
7
7
D
D
0
D
D
0
1
0
1
0
1
0
1
0
1
0
1
0
6
6
D
D
1
1
5
5
D
D
0
0
1/48 or 1/64
1/49 or 1/65
1/24 or 1/32
1/25 or 1/33
4
4
D
Duty
D
Duty
1/48
1/64
1/24
1/32
1/16
1/16
1/16
1/17
1
1
3
3
D
D
0
0
2
2
D
D
0
1
1
1
D
D
D
D
0
0
EPSON
(13) n -line Reverse Register Set
Selects the number of inverse lines for the LCD AC
controller. The value of n is set between 2 to 16 and is
stored in the n-line inversion register.
Do not use this command when using the votage follower
of the built-in power supply, the characteristics of the
built-in power supply cannot then be guaranteed to stay
within the specification.
(14) n -line Reverse Register Release
Cancels n-line inversion and restores the normal 2-frame
AC control. The contents of the n-line inversion register
are not changed.
(15) Read Modify Write
Following this command, the column address is no
longer incremented automatically by a Read Display
Data command. The column address is still incremented
by the Write Display Data command. This mode is
cancelled by the End command. The column address is
then returned to its value prior to the Modify Read
command. This command makes it easy to manage the
duplication of data from a particular display area for
features such as cursor blinking.
Note that the Column Address Set command cannot be
used in modify-read mode.
A
A
A
0
0
0
A3
0
0
0
0
0
0
1
1
RD WR
RD WR
RD WR
E
1
E
1
E
1
R/W
A2
R/W
R/W
0
0
0
1
1
0
0
0
D
D
D
0
0
1
A1
7
7
7
0
0
1
1
1
D
D
D
0
0
1
6
6
6
A0
D
D
D
0
1
0
0
1
1
1
1
5
5
5
D
D
D
1
Number of inverted
0
0
4
4
4
D
A3 A2 A1 A0
D
D
0
0
3
3
3
lines
D
D
D
15
16
0
0
–
2
3
2
2
2
Rev. 4.6
D
D
D
0
0
1
1
1
D
D
D
0
0
0
0
0