EM65570
68COM/ 98SEG 65K Color STN LCD Driver
8.2.19 Extended Power Control
D7 D6 D5 D4 D3 D2 D1 D0
CSB RS RDB WRB RE2 RE1 RE0
1
0
0
1
BF1 BF0
1
DIS
0
1
1
0
0
0
1
(At the time of reset: {DIS} = 0H, {BF1, BF0}=0H; read address: 9H)
The DIS register controls the capacitors (connected between the power supply V0-V4
for LCD drive voltage and VSS) discharge.
When using this register, refer to Section 7-22 (Discharge Circuit).
DIS = “0”: Discharge OFF
DIS = “1”: Discharge start
BF1~BF0: Select the operating frequency in the booster. When the boosting frequency
is high, the driving ability of the booster becomes high, and the power consumption is
increased. When you adjust the boosting frequency, you must take into considerations
the external capacitors and the current consumption.
BF1
0
BF0
0
Operating Clock Frequency in the Booster
1.5K Hz * 8
1.5K Hz * 4
1.5K Hz * 2
1.5 K Hz
0
1
1
0
1
1
8.2.20 Window End X Address
D7 D6 D5 D4 D3 D2 D1 D0
CSB RS RDB WRB RE2 RE1 RE0
1
0
1
0
EX3 EX2 EX1 EX0
0
1
1
0
0
0
1
(At the time of reset: {EX3, EX2, EX1, EX0} = 0H, read address: AH)
D7 D6 D5 D4 D3 D2 D1 D0
EX7 EX6 EX5 EX4
CSB RS RDB WRB RE2 RE1 RE0
1
0
1
1
0
1
1
0
0
0
1
(At the time of reset: {EX7, EX6, EX5, EX4} = 0H, read address: BH)
The EX registers set the X direction end address for the window function.
8.2.21 Window End Y Address
D7 D6 D5 D4 D3 D2 D1 D0
EY3 EY2 EY1 EY0
CSB RS RDB WRB RE2 RE1 RE0
1
1
0
0
0
1
1
0
0
0
1
(At the time of reset: {EY3, EY2, EY1, EY0} = 0H, read address: CH)
D7 D6 D5 D4 D3 D2 D1 D0
EY6 EY5 EY4
CSB RS RDB WRB RE2 RE1 RE0
1
1
0
1
*
0
1
1
0
0
0
1
(At the time of reset: {EY6, EY5, EY4} = 0H, read address: DH)
The EY registers set the Y direction end address for the window function.
Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
• 73
ELAN [ ELAN MICROELECTRONICS CORP ]
