Atmel SAM4L Xplained Pro Evaluation Kit Atmel ATSAM4L-XPRO ATSAM4L-XPRO Data Sheet
Product codes
ATSAM4L-XPRO
995
42023E–SAM–07/2013
ATSAM4L8/L4/L2
38.3
Block diagram
Figure 38-1. ADCIFE Block Diagram
38.4
I/O Lines Description
38.5
Product dependencies
38.5.1
I/O Lines
The pins used for interfacing the ADCIFE may be multiplexed with I/O Controller lines. The pro-
grammer must first program the I/O controller to assign the desired ADCIFE pins to their
grammer must first program the I/O controller to assign the desired ADCIFE pins to their
A D 0
A D 1
A D 2
A D n
S e q u e n c e r
A D C IF E
G C L K
G N D R E F
GPIO C
o
ntro
ller
Neg Analog
mux
T rig g e r
S e le c tio n
T rig g e r/P E V C S o u rc e s
T im e r
In te rru p t R e q u e s t
D M A re q u e s t
A d c ife _ p e v c _ e o c
C L K _ A D C IF E
U s e r
In te rfa c e
A d c ife _ p e v c _ w m
1 2 -b it
C y c lic
P ip e lin e
A D C
C O R E
A D V R E F P
Pos
A
nalo
g
mux
P e rip h e ra l B u s
R e fe re n c e
B u ffe r
C lo c k
G e n e ra to r
C L K _ A D C IF E
B a n d g a p
E x te rn a l R e f.
Table 38-1.
I/O Lines decription table
Name
Description
Type
AD0-AD14
Analog input channels
Analog
External Ref.
2 External Voltage References
Analog
A33VDD
Analog power supply
Power
A33GND
Analog ground
Power
ADTRG
External trigger
Digital