Rainbow-electronics ATmega162V Manuel d'utilisateur télécharger pdf (Page 211)

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101

211

ATmega162/V

2513E–AVR–09/03

Scanning the Analog

Comparator

The relevant Comparator signals regarding Boundary-scan are shown in Figure 91. The

Boundary-scan cell from Figure 92 is attached to each of these signals. The signals are

described in Table 87.

The Comparator need not be used for pure connectivity testing, since all analog inputs

are shared with a digital port pin as well.

Figure 91. Analog Comparator

Figure 92. General Boundary-scan Cell used for Signals for Comparator

ACBG

BANDGAP

REFERENCE

AC_IDLE

ACO

DQ DQ

From

Cell

ClockDR UpdateDR

ShiftDR

Cell EXTEST

To Snalog Circuitry/

To Digital Logic

From Digital Logic/

From Analog Ciruitry

1 2 ... 206 207 208 209 210 211 212 213 214 215 216 ... 322 323

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Rainbow-electronics ATmega162V Manuel d'utilisateur Page 211

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