DF2268FA13V Renesas Electronics America, DF2268FA13V Datasheet - Page 535

• Manufacturer Part Number: DF2268FA13V
• Description: IC H8S/2268 MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2268FA13V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 13MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

2. Software Settings
3. Frame frequency selection
17.4.2
The relationship between the LCD RAM and the display segments differs according to the duty
cycle. LCD RAM maps for the different duty cycles are shown in figures 17.4 to 17.7.
After setting the registers required for display, data is written to the part corresponding to the duty
using the same kind of instruction as for ordinary RAM, and display is started automatically when
turned on. Word- or byte-access instructions can be used for RAM setting.
A. Duty selection
B. Segment selection
The frame frequency can be selected by setting bits CKS3 to CKS0. The frame frequency
should be selected in accordance with the LCD panel specification. For the clock selection
method in watch mode, subactive mode, and subsleep mode, see section 17.4.4, Operation in
Power-Down Modes.
A. A or B waveform selection
B. LCD drive power supply selection
Any of four duty cycles⎯static, 1/2 duty, 1/3 duty, or 1/4 duty⎯can be selected with bits
DTS1 and DTS0.
The segment drivers to be used can be selected with bits SGS3 to SGS0.
Either the A or B waveform can be selected as the LCD waveform to be used by means of
LCDAB.
When an external power supply circuit is used, turn the LCD drive power supply off with
the PSW bit.
Relationship between LCD RAM and Display
Rev. 5.00 Sep. 01, 2009 Page 483 of 656
Section 17 LCD Controller/Driver
REJ09B0071-0500