D6417709SF167BV Renesas Electronics America, D6417709SF167BV Datasheet - Page 669
D6417709SF167BV
Manufacturer Part Number
D6417709SF167BV
Description
IC SUPER H MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417709SBP167BV.pdf
(809 pages)
Specifications of D6417709SF167BV
Core Processor
SH-3
Core Size
32-Bit
Speed
167MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.75 V ~ 2.05 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D6417709SF167BV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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20.4
The A/D converter operates by successive approximations with 10-bit resolution. It has three
operating modes: single mode, multi mode, and scan mode.
20.4.1
Single mode should be selected when only one A/D conversion on one channel is required. A/D
conversion starts when the ADST bit is set to 1 by software, or by external trigger input. The
ADST bit remains set to 1 during A/D conversion and is automatically cleared to 0 when
conversion ends.
When conversion ends the ADF bit is set to 1. If the ADIE bit is also set to 1, an ADI interrupt is
requested at this time. To clear the ADF bit to 0, first read ADF when ADF = 1, then write 0 to the
ADF bit.
When the mode or analog input channel must be switched during A/D conversion, to prevent
incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making
the necessary changes, set the ADST bit to 1 to start A/D conversion again. The ADST bit can be
set at the same time as the mode or channel is changed.
Typical operations when channel 1 (AN1) is selected in single mode are described next.
Figure 20.3 shows a timing diagram for this example. (The ADCSR register specifies bits in the
operation example.)
1. Single mode is selected (MULTI = 0), input channel AN1 is selected (CH2 = CH1 = 0, CH0 =
2. When A/D conversion is completed, the result is transferred into ADDRB. At the same time
3. Since ADF = 1 and ADIE = 1, an ADI interrupt is requested.
4. The A/D interrupt handling routine starts.
5. The routine reads ADCSR, then writes 0 to the ADF flag.
6. The routine reads and processes the conversion result (ADDRB = 0).
7. Execution of the A/D interrupt handling routine ends. Then, when the ADST bit is set to 1,
1), the A/D interrupt is enabled (ADIE = 1), and A/D conversion is started (ADST = 1).
the ADF flag is set to 1, the ADST bit is cleared to 0, and the A/D converter becomes idle.
A/D conversion starts and steps 2 to 7 are executed.
Operation
Single Mode (MULTI = 0)
Rev. 5.00, 09/03, page 623 of 760
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