atmega3250v-8auatmega325v-8ai ATMEL Corporation, atmega3250v-8auatmega325v-8ai Datasheet - Page 231

• Manufacturer Part Number: atmega3250v-8auatmega325v-8ai
• Description: Atmega3250 8-bit Microcontroller With In-system Programmable Flash
• Manufacturer: ATMEL Corporation

25.6.4
2570L–AVR–08/07
Scanning the Analog Comparator
The relevant Comparator signals regarding Boundary-scan are shown in
Boundary-scan cell from
described in
The Comparator need not be used for pure connectivity testing, since all analog inputs are
shared with a digital port pin as well.
Figure 25-7. Analog Comparator
Figure 25-8. General Boundary-scan cell Used for Signals for Comparator and ADC
From Analog Ciruitry
From Digital Logic/
Table
ADCEN
ACME
25-4.
ADC MULTIPLEXER
REFERENCE
BANDGAP
OUTPUT
Figure 25-8
Previous
From
Cell
ShiftDR
0
1
ACBG
ClockDR
is attached to each of these signals. The signals are
ATmega325/3250/645/6450
D
UpdateDR
Q
Next
Cell
To
ACD
D
G
Q
AC_IDLE
EXTEST
0
1
To Analog Circuitry/
To Digital Logic
ACO
Figure
25-7. The
231