EM65565A ELAN Microelectronics Corp, EM65565A Datasheet - Page 37

• Manufacturer Part Number: EM65565A
• Description: 65 Com/ 132 Seg Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 06.06.2005
(This specification is subject to change without further notice)
7.19 Static Indicator
7.20 Power Save
This command controls the static drive system indicator display. This is used when one
of the static indicator LCD drive electrodes is connected to the FR terminal, and the
other is connected to the FRS terminal.
Static Indicator ON/OFF:
When the static indicator ON command is entered, the static indicator register set
command is enabled.
Static Indicator Register Set:
Note:
The power save mode is entered when the display all points ON is performed while in
display OFF mode. The power save mode includes the sleep mode and the standby
mode. The sleep mode is entered when the static indicator is OFF, and the standby
mode is entered when the static indicator is ON. This mode is cleared by the command
display all points OFF.
In sleep mode, all operations in the LCD display system stops, and remains in that state
as long as there are no accesses from the MPU. In sleep mode operation, the oscillator
circuit, the LCD power supply circuit, and all LCD driver circuits are halted.
In standby mode operation, the duty LCD display system operations are halted and
only the static driver system for the indicator continues to operate, providing the
minimum required current consumption for the static driver. In sleep mode operation,
the LCD power supply circuit and the duty system LCD drive circuits are halted. The
static drive system does not operate and the oscillator circuit continues to operate.
D/I /RD /WR(R/W) D7
D/I /RD /WR(R/W) D7
0
0
*
1
1
stands for don’t care
0
0
1
*
D6
D6
0
*
D5
D5
1
*
D4
D4
0
*
D3
D3
1
*
D2
D2
1
*
65 COM/132SEG STN LCD Driver
D1
D1
0
0
0
1
1
D0
D0
D
0
1
0
1
OFF
Blinking at approximately
0.5 second
Blinking at approximately
1 second
Constantly ON
Indicator Display State
Static Indicator
D=0: OFF
D=1: ON
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