DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 760

• 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

Section 17 A/D Converter
State of channel 0 (AN0)
State of channel 1 (AN1)
State of channel 2 (AN2)
State of channel 3 (AN3)
17.5.2
In scan mode, A/D conversion is to be performed sequentially on the specified channels (four
channels maximum). The operations are as follows.
1. When the ADST bit is set to 1 by software, TPU, timer conversion start trigger, or external
2. When A/D conversion for each channel is completed, the result is sequentially transferred to
3. When conversion of all the selected channels is completed, the ADF flag is set to 1. If the
4. Steps 2 to 3 are repeated as long as the ADST bit remains set to 1. When the ADST bit is
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REJ09B0054-0600
trigger, input, A/D conversion starts on the first channel in the group (AN0 when CH2 = 0,
AN4 when CH2 = 1).
the A/D data register corresponding to each channel.
ADIE bit is set to 1 at this time, an ADI interrupt is requested after A/D conversion ends.
Conversion of the first channel in the group starts again.
cleared to 0, A/D conversion stops and the A/D converter enters the wait state.
Figure 17.3 Example of A/D converter Operation (Single Mode, Channel 1 Selected)
ADIE
ADST
ADF
ADDRA
ADDRB
ADDRC
ADDRD
Note: *
Scan Mode
Vertical arrows indicate instructions executed by software.
A/D
conversion start
Idle
Idle
Idle
Idle
A/D conversion 1
Set*
Set*
A/D conversion result 1
Clear*
Idle
Read conversion result*
A/D conversion 2
Set*
Read conversion result*
A/D conversion result 2
Clear*
Idle