HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 446
HD6417034B
Manufacturer Part Number
HD6417034B
Description
32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417034B.pdf
(687 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417034BVFN20
Manufacturer:
RENESAS
Quantity:
101
Company:
Part Number:
HD6417034BVFW20
Manufacturer:
MITSUBISHI
Quantity:
101
Company:
Part Number:
HD6417034BVXN20
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 446 of 687
- Download datasheet (7Mb)
Section 14 A/D Converter
14.4
The A/D converter operates by successive approximations with a 10-bit resolution. Its two modes,
single mode and scan mode, are described below.
14.4.1
In single mode, A/D conversion is performed on a single channel. A/D conversion starts when the
ADST bit in the A/D control/status register (ADCSR) is set to 1 by software or an external trigger
input. During the conversion process the ADST bit remains set at 1. When the conversion is
completed, the ADST bit is automatically cleared to 0.
When the conversion is completed, the ADF bit is set to 1. If the interrupt enable bit (ADIE) in
ADCSR is also set to 1, an A/D conversion interrupt (ADI) is requested. When ADCSR is read
and 1 is written in the ADF bit, the ADF bit is cleared to 0.
Before changing a mode or analog input channel, clear the ADST bit in ADCSR to 0 to stop A/D
conversion in order to prevent malfunctions. Setting the ADST bit to 1 after changing the mode or
channel starts A/D conversion again (changing the mode or channel and setting the ADST bit can
be performed simultaneously).
The following is an example of the A/D conversion process in single mode when channel 1 (AN1)
is selected. See figure 14.3 for the timing.
1. The program selects single mode (SCAN = 0) and input channel AN1 (CH2 = CH1 = 0, CH0 =
2. At the end of the conversion process the A/D converter transfers the result to register ADDRB,
3. Since ADF = 1 and ADIE = 1, an A/D interrupt is requested.
4. The A/D interrupt handling routine is started.
5. The interrupt handling routine reads the ADF value; since it is 1, it writes a 0 into the ADF bit.
6. The interrupt handling routine reads and processes the A/D conversion result (ADDRB).
7.
Steps 2–7 can now be repeated by setting the ADST bit to 1 again.
Rev. 7.00 Jan 31, 2006 page 420 of 658
REJ09B0272-0700
1), enables the A/D interrupt request (ADIE = 1), and sets the ADST bit to 1 to start A/D
conversion.
sets the ADF bit to 1, clears the ADST bit to 0, and halts.
The routine ends.
Operation
Single Mode (SCAN = 0)
Related parts for HD6417034B
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet: