DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 475

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

Example of PWM Mode Setting Procedure: Figure 11.21 shows an example of the PWM mode
setting procedure.
Examples of PWM Mode Operation: Figure 11.22 shows an example of PWM mode 1
operation.
In this example, TGRA compare match is set as the TCNT clearing source, 0 is set for the TGRA
initial output value and output value, and 1 is set as the TGRB output value.
In this case, the value set in TGRA is used as the cycle, and the values set in TGRB registers as
the duty cycle.
Select counter clearing source
Select waveform output level
Select counter clock
Set PWM mode
<PWM mode>
PWM mode
Figure 11.21 Example of PWM Mode Setting Procedure
Start count
Set TGR
[1]
[2]
[3]
[4]
[5]
[6]
[1]
[2]
[3]
[4]
[5]
[6]
Select the counter clock with bits TPSC2 to
TPSC0 in TCR. At the same time, select the
input clock edge with bits CKEG1 and CKEG0 in
TCR.
Use bits CCLR2 to CCLR0 in TCR to select the
TGR to be used as the TCNT clearing source.
Use TIOR to designate the TGR as an output
compare register, and select the initial value and
output value.
Set the cycle in the TGR selected in [2], and
set the duty in the other TGRs.
Select the PWM mode with bits MD3 to MD0 in
TMDR.
Set the CST bit in TSTR to 1 to start the count
operation.
Rev. 6.00 Mar. 18, 2010 Page 413 of 982
Section 11 16-Bit Timer Pulse Unit (TPU)
REJ09B0054-0600