sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 668

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

Liquid Crystal Display (LCD40F4BV1) Block Description
18.3.2
This section consists of register descriptions. Each description includes a standard register diagram.
Details of register bit and field function follow the register diagrams, in bit order.
18.3.2.1
Read: anytime
Write: LCDEN anytime. To avoid segment flicker the clock prescaler bits, the bias select bit and the duty
668
Module Base + 0x0000
DUTY[1:0]
LCLK[2:0]
LCDEN
Reset
Field
BIAS
5:3
1:0
7
2
W
R
select bits must not be changed when the LCD is enabled.
LCDEN
Register Descriptions
LCD40F4BV1 Driver System Enable — The LCDEN bit starts the LCD waveform generator.
0 All frontplane and backplane pins are disabled. In addition, the LCD40F4BV1 system is disabled
1 LCD driver system is enabled. All FP[39:0] pins with FP[39:0]EN set, will output an LCD driver
LCD Clock Prescaler — The LCD clock prescaler bits determine the IRCCLK divider value to produce the LCD
clock frequency. For detailed description of the correlation between LCD clock prescaler bits and the divider
value please refer to
BIAS Voltage Level Select — This bit selects the bias voltage levels during various LCD operating modes, as
shown in
LCD Duty Select — The DUTY1 and DUTY0 bits select the duty (multiplex mode) of the LCD40F4BV1 driver
system, as shown in
LCD Control Register 0 (LCDCR0)
7
0
and all LCD waveform generation clocks are stopped.
waveform The BP[3:0] pins will output an LCD40F4BV1 driver waveform based on the settings of DUTY0
and DUTY1.
Table
= Unimplemented or Reserved
18-9.
6
0
0
Figure 18-2. LCD Control Register 0 (LCDCR0)
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Table
Table
Table 18-4. LCDCR0 Field Descriptions
18-8.
18-9.
LCLK2
5
0
LCLK1
4
0
Description
LCLK0
3
0
BIAS
2
0
DUTY1
Freescale Semiconductor
1
0
DUTY0
0
0