S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 474

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

S1D15710 Series
• Static Indicator Register Set
This command sets data in the 2-bit static indicator register and sets the blinking state of the static indicator.
• Sequence of Static Indicator Register Set
(20) Power Save
This command makes the static indicator enter the power save state and can greatly reduce the power consumption. The
power save state consists of the sleep state and stand-by state.
The operating state before the display data and power save activation is held in the sleep and stand-by states, and the
display data RAM can also be accessed from the MPU.
• Sleep State
This command stops all the operations of LCD display systems, and can reduce the power consumption approximate
to the static current when they are not accessed from the MPU. The internal state in the sleep state is as follows:
(1) The oscillator circuit and the LCD power supply circuit are stopped.
(2) All liquid crystal drive circuit is stopped and the segment and common drivers output the V
11–36
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
0
0
E R/W
E R/W
1
1
0
0
1
*
0
*
1
*
0
*
1
*
No
Static Indicator Register Set
0
*
Is the change terminated?
Static Indicator ON
0
0
1
1
0
Figure 19
EPSON
0
1
0
1
0
1
Yes
(Static indicator
OFF
ON (blinks at an interval of approximately
ON (blinks at an interval of approximately
ON (goes on at all times.)
Power save state
Stand-by state
Sleep state
mode reset)
0.5 second.)
one second.)
Indicator display state
*: Invalid bit
DD
level.
Rev. 1.1a