DF38122HWV Renesas Electronics America, DF38122HWV Datasheet - Page 444

• Manufacturer Part Number: DF38122HWV
• Description: IC H8/38122 MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of DF38122HWV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 13 LCD Controller/Driver
13.3
13.3.1
To perform LCD display, the hardware and software related items described below must first be
determined.
Hardware Settings
a. Using 1/2 duty
b. Large-panel display
Rev. 8.00 Mar. 09, 2010 Page 422 of 658
REJ09B0042-0800
When 1/2 duty is used, interconnect pins V
As the impedance of the built-in power supply split-resistance is large, it may not be suitable
for driving a large panel. If the display lacks sharpness when using a large panel, refer to
section 13.3.4, Boosting the LCD Drive Power Supply. When static or 1/2 duty is selected, the
common output drive capability can be increased. Set CMX to 1 when selecting the duty
cycle. In this mode, with a static duty cycle pins COM
and with 1/2 duty the COM
waveform is output from pins COM
Settings up to LCD Display
Operation
Figure 13.2 Handling of LCD Drive Power Supply when Using 1/2 Duty
1
waveform is output from pins COM
4
and COM
V
V
2
CC
SS
and V
3
.
3
as shown in figure 13.2.
V
V
V
1
2
3
4
to COM
1
2
output the same waveform,
and COM
1
, and the COM
2