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ATmega325P датащи(PDF) 236 Page - ATMEL Corporation

номер детали ATmega325P
подробное описание детали  8-bit Microcontroller with 32K Bytes In-System Programmable Flash
PDF  364 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega325P датащи(HTML) 236 Page - ATMEL Corporation

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236
8023F–AVR–07/09
ATmega325P/3250P
23.5.4
Scanning the Analog Comparator
The relevant Comparator signals regarding Boundary-scan are shown in Figure 23-6. The
Boundary-scan cell from Figure 23-7 is attached to each of these signals. The signals are
described in Table 23-3.
The Comparator need not be used for pure connectivity testing, since all analog inputs are
shared with a digital port pin as well.
Figure 23-6. Analog Comparator
Figure 23-7. General Boundary-scan cell Used for Signals for Comparator and ADC
ACBG
BANDGAP
REFERENCE
ADC MULTIPLEXER
OUTPUT
ACME
AC_IDLE
ACO
ADCEN
ACD
0
1
DQ
DQ
G
0
1
From
Previous
Cell
ClockDR
UpdateDR
ShiftDR
To
Next
Cell
EXTEST
To Analog Circuitry/
To Digital Logic
From Digital Logic/
From Analog Ciruitry



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