DEMO9S08LIN Freescale, DEMO9S08LIN Datasheet - Page 159

• Manufacturer Part Number: DEMO9S08LIN
• Manufacturer: Freescale

Specifications of DEMO9S08LIN

• Lead Free Status / RoHS Status: Compliant

9.5.2.2
Example 2 LCD setup requirements are reiterated in the following table:
Table 9-23
Freescale Semiconductor
LCDSUPPLY
XXXXXX01
1XXXXX01
LCDCLKS
0X011X11
10000010
Example
Register
LCDCR1
LCDCR0
2
lists the required setup values required to initialize the LCD as specified by Example 2:
Operating
Voltage,
Initialization
VSUPPLY[1:0]
CPCADJ[1:0]
CLKADJ[5:0]
3.6-V
Bit/bit field
LCDCPMS
LCDCPEN
HDRVBUF
V
DUTY[1:0]
BBYPASS
LCDSTP3
LCLK[2:0]
SOURCE
LPWAVE
LCDWAI
DD
DIV16
LCD Clock
100 kHz
Source
Internal
Table 9-23. Initialization Register Values for Example 2
MC9S08LC60 Series Data Sheet: Technical Data, Rev. 4
000010
Binary
Value
011
Example 2
XX
01
10
X
X
X
X
1
0
1
0
1
LCD Glass
Operating
Voltage
3-V
Selects the bus clock as the LCD clock input
External clock reference = 0; Bus clock = 1
Adjusts the LCD clock input (see table 9-12)
Adjusts the LCD clock input (see table 9-12)
Enable the charge pump
Don’t care since power is from internal V
Doubler mode = 0; Tripler mode = 1
High drive buffer
Configure LCD charge pump clock source
Buffer Bypass; Buffer mode = 0; Unbuffered mode = 1
Power LCD via V
V
LCD is “on” in WAIT mode
LCD is “off” in STOP3 mode
For 1/3 duty cycle, select closest value to the desired 80 Hz LCD frame frequency
(see table 9-13). Note the LCD base frequency - 256.2 Hz
Low power waveform
For 99 segments (3x33), select 1/3 duty cycle (see table 9-11)
LL3
is generated from V
segments
Required
LCD
99
DD
internal power (see table 9-16). When VSUPPLY[1:0] = 01,
Frame
80 Hz Individual segment
Rate
LCD
DD .
Chapter 9 Liquid Crystal Display Driver (S08LCDV1)
Mode/Rate
Comment
Blinking
0.5 Hz
DD
WAIT modes
Behavior in
STOP3 and
STOP3: off
WAIT: on
LCD Power
Power via
Input
V
DD
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