Abov MC97F60128 - LCD Voltage Dividing Connection

310
MC97F60128
ABOV Semiconductor Co., Ltd.
11.16.4 LCD Voltage Dividing Connection
NOTE)
1. When 1/2 bias are selected, the VLC1, VLC2 and VLC3 are internally connected.
2. When 1/3 bias are selected, the VLC2 and VLC3 are internally connected.
3. When the internal resistors are selected, all the P73/VLC0, P72/VLC1, P71/VLC2 and
P70/VLC3 pins can be used for normal I/O.
Figure 11.94 Internal Resistor Bias Connection
VSS
R R R R
VLC 0 VLC 1 VLC 2 VLC 3
VLCD
(1/ 4 BIAS)
VLC0 VLC1 VLC2 VLC3
VSS
R
R
VLC 0 VLC 1
VLC 2
VLC 3
VLCD
(1/ 2 Bias)
VLC0 VLC1 VLC 2 VLC 3
LCTEN
DISP
VSS
R
VLC 0 VLC 1 VLC 2 VLC 3
VLCD
(1/ 3 BIAS)
VLC 0 VLC1 VLC 2 VLC3
R
Con
t
rast
Co
n
troll
e
r
LCTEN
DISP
C
on
trast
Con
tr
oller
LCTEN
DISP
C
on
t
rast
Controll
e
r
R
VSS
R R R R
VLC 0 VLC 1 VLC 2 VLC 3
VLCD
(1/ 4 BIAS)
VLC0 VLC1 VLC2 VLC3
VSS
R
R
VLC 0 VLC 1
VLC 2
VLC 3
VLCD
(1/ 2 Bias)
VLC0 VLC1 VLC 2 VLC 3
LCTEN
DISP
VSS
R
VLC 0 VLC 1 VLC 2 VLC 3
VLCD
(1/ 3 BIAS)
VLC 0 VLC1 VLC 2 VLC3
R
Con
t
rast
Co
n
troll
e
r
LCTEN
DISP
C
on
trast
Con
tr
oller
LCTEN
DISP
C
on
t
rast
Controll
e
r
R