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H8S/2218 数据表(PDF) 585 Page - Renesas Technology Corp

部件名 H8S/2218
功能描述  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  750 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2218 数据表(HTML) 585 Page - Renesas Technology Corp

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Section 15 A/D Converter
Rev.6.00 Jun. 03, 2008 Page 537 of 698
REJ09B0074-0600
15.2
Input/Output Pins
Table 15.1 summarizes the input pins used by the A/D converter. The AN0 to AN3 and AN14 to
AN15 pins are analog input pins. The VCC and VSS pins are the power supply pins for the
analog block in the A/D converter. The Vref pin is the reference voltage pin for the A/D
conversion.
Table 15.1
Pin Configuration
Pin Name
Symbol
I/O
Function
Power supply pin
VCC
Input
Analog block power supply and reference voltage
(also used for digital block)
Ground pin
VSS
Input
Analog block ground and reference voltage
(also used for digital block)
Reference voltage pin
Vref
Input
Reference voltage pin for A/D conversion
Analog input pin 0
AN0
Input
Analog input pin 1
AN1
Input
Analog input pin 2
AN2
Input
Analog input pin 3
AN3
Input
Analog input pin 14
AN14
Input
Analog input pin 15
AN15
Input
Analog input pins
A/D external trigger
input pin
ADTRG
Input
External trigger input pin for starting A/D
conversion
15.3
Register Descriptions
The A/D converter has the following registers.
• A/D data register A (ADDRA)
• A/D data register B (ADDRB)
• A/D data register C (ADDRC)
• A/D data register D (ADDRD)
• A/D control/status register (ADCSR)
• A/D control register (ADCR)



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