upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 234
upd78f0124m6gba1-8et
Manufacturer Part Number
upd78f0124m6gba1-8et
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0124M6GBA1-8ET.pdf
(545 pages)
- Current page: 234 of 545
- Download datasheet (4Mb)
12.2 Configuration of A/D Converter
(1) ANI0 to ANI7 pins
(2) Sample & hold circuit
(3) Series resistor string
(4) Voltage comparator
(5) Successive approximation register (SAR)
234
The A/D converter includes the following hardware.
These are the analog input pins of the 8-channel A/D converter. They input analog signals to be converted into
digital signals. Pins other than the one selected as the analog input pin by the analog input channel specification
register (ADS) can be used as input port pins.
The sample & hold circuit samples the input signal of the analog input pin selected by the selector when A/D
conversion is started, and holds the sampled analog input voltage value during A/D conversion.
The series resistor string is connected between AV
the analog input signal.
The voltage comparator compares the sampled analog input voltage and the output voltage of the series resistor
string.
This register compares the sampled analog voltage and the voltage of the series resistor string, and converts the
result, starting from the most significant bit (MSB).
When the voltage value is converted into a digital value down to the least significant bit (LSB) (end of A/D
conversion), the contents of the SAR register are transferred to the A/D conversion result register (ADCR).
Registers
Item
Figure 12-2. Circuit Configuration of Series Resistor String
Table 12-1. Registers of A/D Converter Used on Software
AV
AV
REF
SS
A/D conversion result register (ADCR)
A/D converter mode register (ADM)
Analog input channel specification register (ADS)
Power-fail comparison mode register (PFM)
Power-fail comparison threshold register (PFT)
CHAPTER 12 A/D CONVERTER
User’s Manual U16315EJ3V1UD
P-ch
REF
Series resistor string
and AV
Configuration
SS
, and generates a voltage to be compared with
ADCS
Related parts for upd78f0124m6gba1-8et
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
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 MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: