EM65101
128COM/160SEG 16 Gray Scale Level LCD Driver
DCON: This command sets the internal booster circuit ON or OFF.
DCON = “0”: Booster circuit OFF
DCON=”1”: Booster circuit ON
ACL: This command initializes the internal circuit.
ACL = “0”: Normal operation
ACL = “1”: Initialization ON
When the reset operation begins internally after the ACL register is set to “1,” the ACL
register is automatically cleared to “0.” The internal reset signal is generated with a
clock (built-in oscillation circuit or CK input) for display. Therefore, set the WAIT period
to at least two display clock cycles. After the WAIT period, the subsequent operation is
then executed.
8.2.8 LCD Duty (DS)
D7 D6 D5 D4 D3 D2 D1 D0
DS3 DS2 DS1 DS0
CSB RS RDB WRB RE2 RE1 RE0
1
0
0
1
0
1
1
0
0
0
0
(At the time of reset: {DS3, DS2, DS1, DS0} = 0H, read address: 9H)
D7 D6 D5 D4 D3 D2 D1 D0
DS7 DS6 DS5 DS4
CSB RS RDB WRB RE2 RE1 RE0
1
0
1
0
0
1
1
0
0
0
0
(At the time of reset: {DS7, DS6, DS5, DS4} = 8H, read address: AH)
The DS register set to LCD display duty.
Selectable
Duty ratio
DS7
DS6
DS5
DS4
DS3
DS2
DS1
DS0
0
:
0
:
0
:
0
:
0
:
0
:
0
:
0
:
No operation
0
0
0
:
0
0
0
:
0
0
0
:
0
0
0
:
0
1
1
:
1
0
0
:
1
0
0
:
1
0
1
:
1/8
1/9
:
0
:
1
:
1
:
0
:
0
:
1
:
0
:
0
:
1/100
:
0
1
1
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
1
:
1/127
1/128
No operation
1
1
1
1
1
1
1
1
Partial display can be made possible by setting an arbitrary duty ratio.
Product Specification (V0.4) 08.15.2005
• 51
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
