ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 240
ATMEGA169
Manufacturer Part Number
ATMEGA169
Description
8-bit Microcontroller with 16K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA169.pdf
(365 pages)
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Scanning the Analog
Comparator
240
ATmega169/V
The relevant Comparator signals regarding Boundary-scan are shown in Figure 113.
The Boundary-scan cell from Figure 114 is attached to each of these signals. The sig-
nals are described in Table 104.
The Comparator need not be used for pure connectivity testing, since all analog inputs
are shared with a digital port pin as well.
Figure 113. Analog Comparator
Figure 114. General Boundary-scan cell Used for Signals for Comparator and ADC
From Analog Ciruitry
From Digital Logic/
ADCEN
ACME
ADC MULTIPLEXER
REFERENCE
OUTPUT
BANDGAP
Previous
From
Cell
ShiftDR
0
1
ACBG
ClockDR
D
UpdateDR
Q
Next
Cell
To
ACD
D
G
Q
AC_IDLE
EXTEST
0
1
To Analog Circuitry/
To Digital Logic
ACO
2514P–AVR–07/06
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