EM83040B
LCD CONTROLLER
(
7) Control register
m in ar y
Preli
Address
Bit3
Bit2
Bit1
Bit0
2560
IRS
IR2
IR1
IR0
2561
REG3
REG2
REG1
REG0
2562
PS1
PS0
REG5
REG4
X: don’t care
Default status of Address 2560,2561 and 2562, respectively: 0010, 0000, 0000
Address 2562 bit3~2(PS1, PS0) be selected:
Use settings
PS1
PS0
Step-up
circuit
Ο
X
V
regulator
circuit
O
O
V/F
circuit
External
voltage input
Only the internal power
supply is used
Only the V regulator
circuit and the V/F circuit
are used
Only the V/F circuit is
used
Only the external power
supply is used
1
1
1
0
O
O
X
VOUT
0
0
1
0
X
X
X
X
O
X
V1
V1 to V5
Address 2562 bit1~0 and 2561 bit3~0 (Reg5~Reg0) is selected the VEV value
REG5~REG0
000000
000001
↓
011111
100000
↓
111110
111111
V
EV
1.2 V
1.212 V
↓
1.572 V
1.584 V
↓
1.944 V
1.956 V
VOUT
V
EV
step
0.012V
V1
Rb
V EV
VREG
Ra
Fig.7
* This specification are subject to be changed without notice.
9.14.2001
10
EMC [ ELAN MICROELECTRONICS CORP ]
