EM83040A
LCD CONTROLLER
minary
Preli
(
7) Control register
Address
2560
Initial : 0000
Bit3
V_BIAS
Bit2
Regulator2
Bit1
Regulator1
Bit0
regulator0
Bit2,1,0 : internal regulator output selection.
(regulator2, regulator1, regulator0)
(0,0,0)
(0,0,1)
(0,1,0)
(0,1,1)
(1,0,0)
(1,0,0)
(1,1,0)
(1,1,1)
Bit3 : internal Bias voltage selection
(V_BIAS)
0
1
Bias fromV1 to V5
1/5 bias
V_BIAS=0
V1
V2
V2
V2*4/5
V3
V2*3/5
V4
V2*2/5
V5
V2*1/5
*V2=VREG*2*97%
*V3=VREG*3*95%
Output voltage
2.5V
2.8V
3.1V
3.4V
3.7V
4.0V
4.3V
4.6V
BIAS voltage
VSS2
VSS3
1/5 bias
V_BIAS=1
V3
V3*4/5
V3*3/5
V3*2/5
V3*1/5
1/7 bias
V_BIAS=0
V2
V2*6/7
V2*5/7
V2*2/7
V2*1/7
1/7 bias
V_BIAS=1
V3
V3*6/7
V3*5/7
V3*2/7
V3*1/7
1/9 bias
V_BIAS=0
V2
V2*8/9
V2*7/9
V2*2/9
V2*1/9
1/9 bias
V_BIAS=1
V3
V3*8/9
V3*7/9
V3*2/9
V3*1/9
* This specification are subject to be changed without notice.
5.31.2001
7
EMC [ ELAN MICROELECTRONICS CORP ]
