ATMEga64L ATMEL Corporation, ATMEga64L Datasheet - Page 267
ATMEga64L
Manufacturer Part Number
ATMEga64L
Description
8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.ATMEGA64L.pdf
(363 pages)
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2490G–AVR–03/04
Table 105. Boundary-scan Signals for the ADC
Signal
Name
GNDEN
HOLD
IREFEN
MUXEN_7
MUXEN_6
MUXEN_5
MUXEN_4
MUXEN_3
MUXEN_2
MUXEN_1
MUXEN_0
NEGSEL_2
NEGSEL_1
NEGSEL_0
PASSEN
PRECH
Direction
as Seen
from the
ADC
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Description
Ground the negative
input to comparator
when true
Sample&Hold
signal. Sample
analog signal when
low. Hold signal
when high. If gain
stages are used,
this signal must go
active when ACLK
is high.
Enables Band-gap
reference as AREF
signal to DAC
Input Mux bit 7
Input Mux bit 6
Input Mux bit 5
Input Mux bit 4
Input Mux bit 3
Input Mux bit 2
Input Mux bit 1
Input Mux bit 0
Input Mux for
negative input for
differential signal,
bit 2
Input Mux for
negative input for
differential signal,
bit 1
Input Mux for
negative input for
differential signal,
bit 0
Enable pass-gate of
gain stages.
Precharge output
latch of comparator
(Active low)
Recommended
(1)
Input when not
(Continued)
in Use
0
1
0
0
0
0
0
0
0
0
1
0
0
0
1
1
ATmega64(L)
Recommended Inputs
are Used, and CPU is
Output Values when
not Using the ADC
0
1
0
0
0
0
0
0
0
0
1
0
0
0
1
1
267
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