HD6417011VX20V Renesas Electronics America, HD6417011VX20V Datasheet - Page 252
HD6417011VX20V
Manufacturer Part Number
HD6417011VX20V
Description
MPU 5V 0K 100-QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7010r
Datasheet
1.HD6417011VX20V.pdf
(294 pages)
Specifications of HD6417011VX20V
Core Processor
SH-2
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
POR, PWM
Number Of I /o
11
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417011VX20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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13.4.2
Scan mode is useful for monitoring analog inputs in a group of one or more channels. When the
ADST bit in the A/D control/status register (ADCSR) is set to 1 by software or MTU trigger input,
A/D conversion starts on the first channel in the group (AN0 when CH2 = 0; AN4 when CH1 = 1).
When more than one channel has been selected, A/D conversion starts on the second channel
(AN1 or AN5) as soon as conversion ends on the first channel.
A/D conversion is performed repeatedly on all the selected channels until the ADST bit is cleared
to 0. The conversion results are transferred to and stored in the ADDR register for each channel.
To prevent incorrect operation, A/D conversion should be halted by clearing the ADST bit to 0
before changing the mode or analog input channels. After the change is made, the first channel is
selected and A/D conversion is restarted by setting the ADST bit to 1 (the mode or channel change
and setting of the ADST bit can be carried out simultaneously).
An example of the A/D conversion operation in scan mode when three channels (AN0–AN2) in
group 0 are selected is described below. Figure 13.4 shows a timing diagram for this example.
1. Scan mode is selected (SCAN = 1), group 0 is selected as the scan group (CH2 = 0), analog
2. A/D conversion starts on the first channel (AN0), and when completed, the result is transferred
3. Conversion proceeds in the same way through the third channel (AN2).
4. When conversion is completed for all the selected channels (AN0–AN2), ADF is set to 1, the
5. Steps 2 to 4 are repeated as long as the ADST bit remains set to 1. When the ADST bit is
242
input channels AN0-AN2 are selected (CH1 = 1, CH0 = 0), and A/D conversion is started
(ADST = 1).
to ADDRA. Next, conversion of the second channel (AN1) starts automatically.
first channel (AN0) is selected again, and conversion is performed on that channel. If the ADIE
bit is also 1, an ADI interrupt is requested when conversion is completed.
cleared to 0, A/D conversion stops. After this, if the ADST bit is set to 1, A/D conversion starts
again from the first channel (AN0).
Scan Mode (SCAN = 1)
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