DEMO9S08LIN Freescale, DEMO9S08LIN Datasheet - Page 153

• Manufacturer Part Number: DEMO9S08LIN
• Manufacturer: Freescale

Specifications of DEMO9S08LIN

• Lead Free Status / RoHS Status: Compliant

9.4.4.2
The LCD power supply can be internally derived from V
source in the range between 0.9 to 1.8 Volts that is applied to the V
more detailed description of the power state of the LCD module which depends on the configuration of the
VSUPPLY[1:0], LCDCPMS, BBYPASS, and LCDCPEN bits.
Figure 9-18
source. If VSUPPLY[1:0] = 00 or 01, the LCD power supply is configured to be internally derived from
V
9.4.4.2.1
When VSPUPPLY[1:0] = 10, only the powersw3 signal is asserted and the LCD module is configured to
be powered via an external voltage input on V
to 1.8 V). The figure above shows that V
The voltage divider block uses the states of LCDCPMS, BBYPASS, and powersw3 to derive a state for
V
Freescale Semiconductor
DD
LL1
00
01
10
11
.
.
X
X
X
x
0
0
1
1
shows that if VSUPPLY[1:0] = 10 or 11, the LCD module is configured for an external power
LCD Power Supply and Voltage Buffer Configuration
X
X
0
1
0
1
X
LCD External Power Supply, VSPUPPLY[1:0] = 10
x
0
1
0
1
0
1
1
1
1
0
1
Initial V
Internal power supply.
V
Initial V
Internal power supply.
V
Bias voltages not generated.
External power supply for V
Buffered doubler mode.
External power supply for V
Un-buffered doubler mode.
External power supply for V
Buffered tripler mode.
External power supply for V
Un-buffered tripler mode.
External power supply for V
V
V
LL2
LL3
LCD
LCD
MC9S08LC60 Series Data Sheet: Technical Data, Rev. 4
is generated from V
is generated from V
pin floating.
pin floating.
LL2
LL3
LCD Power Supply Configuration
voltage to V
voltage to V
Table 9-18. V
LCD
DD
DD
is an input to the voltage divider block and is related to V
DD
DD
LCD
level.
level.
.
.
LCD
LCD
LCD
LCD
LL1
,V
.
.
.
.
(Recall V
DD
LL2
Switch Option
, and VLL3 required.
DD
LCD
or it can be externally derived from a voltage
Chapter 9 Liquid Crystal Display Driver (S08LCDV1)
is specified to be in the range from 0.9 V
LCD
pin. The Table below provides a
LCD disabled
LCD operational
LCD operational
Minimum current consumption
LCD disabled
LCD operational
Maximum current consumption
LCD operational
LCD operational
LCD operational
Minimum current consumption
LCD Operational
Invalid LCD power configuration
LCD disabled
LCD Operational State
LL1.
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