ATmega325PA Atmel Corporation, ATmega325PA Datasheet - Page 247

• Manufacturer Part Number: ATmega325PA
• Manufacturer: Atmel Corporation

8285D–AVR–06/11
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Figure 25-8. General Boundary-scan cell Used for Signals for Comparator and ADC
Table 25-2.
Signal
Name
AC_IDLE
ACO
ACME
ACBG
From Analog Ciruitry
From Digital Logic/
Direction as
Seen from the
Comparator
input
output
input
input
Boundary-scan Signals for the Analog Comparator
Previous
From
Cell
Description
Turns off Analog
Comparator when
true
Analog Comparator
Output
Uses output signal
from ADC mux when
true
Bandgap Reference
enable
ShiftDR
0
1
ClockDR
D
UpdateDR
Q
Next
Cell
To
D
G
Recommended
Input when Not
in Use
1
Will become input
to µC code being
executed
0
0
Q
EXTEST
0
1
To Analog Circuitry/
To Digital Logic
Output Values when
Recommended Inputs
are Used
Depends upon µC code
being executed
0
Depends upon µC code
being executed
Depends upon µC code
being executed
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