em65567 ELAN Microelectronics Corp, em65567 Datasheet - Page 60

• Manufacturer Part Number: em65567
• Description: Com/ Color Driver
• Manufacturer: ELAN Microelectronics Corp

ACL
The internal circuit can be initialized. This register is effective only at Master operation mode.
ACL = “0”: Normal operation
ACL = “1”: Initialization ON
When the reset operation begins internally after ACL register sets to “1”, the ACL register is automatically cleared to “0”.
The internal reset signal has been generated with a clock (built-in oscillation circuit or CK input) for the display. Therefore,
install the WAIT period for the display clock two cycles at least. After WAIT period, next operation can handle. Since built-in
oscillation circuit and external CK input can not be used in the slave mode, the setting of the ACL register becomes the
invalidity. Certainly use the RESB terminal, when the reset is applied on the slave chip.
DCON
The internal booster circuit is set ON/OFF
DCON = “0”: Booster circuit OFF
DCON=”1”: Booster circuit ON
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.
(a)
(b)
(c)
(d)
(e)
AMPON Command
The internal OP-AMP circuit block (voltage regulator, electronic volume, and voltage conversion circuit)
this command.
AMPON = “0”: The internal OP-AMP circuit OFF
AMPON = ”1”: The internal OP-AMP circuit ON
* This specification is subject to be changed without notice.
The oscillating circuit and power supply circuit are stopped.
The LCD drive is stopped, and output of the segment driver and common driver are VSS level.
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 power saving command.
60
66 COM/ 96 SEG 256 Color STN LCD Driver
is set
2003/1/9 (V0.1)
ON/OFF
EM65567
by