MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 336

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

16.9.2 LCD Clock Register (LCDCLK)
MC68HC908LJ12
Freescale Semiconductor
—
Rev. 2.1
Address:
The LCD clock register (LCDCLK):
FCCTL[1:0] — Fast Charge Duty Cycle Select
Reset:
Read:
Write:
•
•
•
These read/write bits select the duty cycle of the fast charge duration.
Reset clears these bits. (See
FCCTL1:FCCTL0
Selects the fast charge duty cycle
Selects LCD driver duty cycle
Selects LCD waveform base clock
$004F
Bit 7
00
01
10
11
Liquid Crystal Display Driver (LCD)
0
0
Figure 16-17. LCD Clock Register (LCDCLK)
Table 16-4. Fast Charge Duty Cycle Selection
= Unimplemented
FCCTL1
6
0
In each LCDCLK/2 period, each bias resistor is reduced to
37 kΩ for a duration of LCDCLK/32.
In each LCDCLK/2 period, each bias resistor is reduced to
37 kΩ for a duration of LCDCLK/64.
In each LCDCLK/2 period, each bias resistor is reduced to
37 kΩ for a duration of LCDCLK/128.
Not used
FCCTL0
5
0
DUTY1
16.5.4 Fast Charge and Low
4
0
Fast Charge Duty Cycle
DUTY0
Liquid Crystal Display Driver (LCD)
3
0
LCLK2
2
0
LCLK1
1
0
Technical Data
Current)
LCLK0
Bit 0
0
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