em65570sagh ELAN Microelectronics Corp, em65570sagh Datasheet - Page 66

• Manufacturer Part Number: em65570sagh
• Description: 68com/98seg 65k Color Stn Lcd Drivers
• Manufacturer: ELAN Microelectronics Corp

EM65570S
68COM/98SEG 65K Color STN LCD Drivers
60 x
HALT
The conditions of power saving are set ON/OFF by this command.
HALT = “0”: Normal operation
HALT=”1”: Power-saving operation
When setting in the power-saving state, the consumed current can be reduced to a
value near to the standby current.
The internal condition at power saving are as follows.
AMPON
The internal OP-AMP circuit block (voltage regulator, electronic volume, and voltage
conversion circuit) is set ON/OFF by this command.
AMPON = “0”: The internal OP-AMP circuit OFF
AMPON = ”1”: The internal OP-AMP circuit ON
8.2.8 LCD Duty (DS)
(At the time of reset: {DS3, DS2, DS1, DS0}=CH, read address: CH)
The DS register set to LCD display duty.
Partial display can be made possible by setting an arbitrary duty ratio.
– mark means “Don’t care”
D7
1
The oscillating circuit and power supply circuit are stopped.
The LCD drive is stopped, and output of the segment driver and common driver are
The clock input from CK pin is inhibited.
The contents of Display RAM data are maintained.
The operational mode maintains the state of command execution before executing
VSS level.
power saving command.
DS3
0
0
0
0
0
0
0
1
D6
1
D5
0
DS2
D4
0
0
0
0
1
1
1
1
0
DS3 DS2 DS1 DS0
D3
DS1
D2
0
0
1
1
0
0
1
0
D1
(This specification is subject to change without further notice)
DS0
D0
0
1
0
1
0
1
0
0
CSB RS RDB WRB RE2 RE1 RE0
Product Specification (V1.0) 04.18.2006
0
1
Display width and Duty
1
Reserved
1/16 duty
1/24 duty
1/32 duty
1/48 duty
1/64 duty
1/72 duty
1/8 duty
0
0
0
0