Datasheet

747
32142D–06/2013
ATUC64/128/256L3/4U
30.3 Block Diagram
Figure 30-1. ACIFB Block Diagram
30.4 I/O Lines Description
There are two groups of analog comparators, A and B, as shown in Table 30-1. In normal mode,
this grouping does not have any meaning. In window mode, two analog comparators, one from
group A and the corresponding comparator from group B, are paired.
……………. . .
TRIGGER
EVENTS
IRQ
GCLK
Peripheral Bus
ACIFB
Analog
Comparators
PERIPHERAL
EVENT
GENERATION
-
+
AC
INN
INP
CONF0.INSELN
-
+
AC
INN
INP
CONFn.INSELN
FILTER
FILTER
INTERRUPT
GENERATION
CLK_ACIFB
CTRL.ACTEST
TR.ACTESTn
TR.ACTEST0
ACOUT0
ACOUTn
A
C
P
0
AC
N
0
A
C
R
E
F
N
A
C
P
n
ACNn
Table 30-1. Analog Comparator Groups for Window Mode
Group A Group B Pair Number
AC0 AC1 0
AC2 AC3 1
AC4 AC5 2
AC6 AC7 3
Table 30-2. I/O Line Description
Pin Name Pin Description Type
ACAPn Positive reference pin for Analog Comparator A n Analog
ACANn Negative reference pin for Analog Comparator A n Analog