Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet
Product codes
ATSAM4L-EK
165
42023E–SAM–07/2013
ATSAM4L8/L4/L2
Figure 12-2. BOD18/33 Block Diagram
The BOD18/33 is enabled by writing a one to the Enable bit in the BOD18/33 Control Register
(BOD18/33CTRL.EN). When enabled, the BOD18/33 output will be masked during half a Sys-
tem RC oscillator (RCSYS) clock cycle and an additional two CPU clock cycles, in order to avoid
false results. See
(BOD18/33CTRL.EN). When enabled, the BOD18/33 output will be masked during half a Sys-
tem RC oscillator (RCSYS) clock cycle and an additional two CPU clock cycles, in order to avoid
false results. See
for parametric details.
12.6.3.1
Monitored Voltages
• VDDIO (BOD33)
• VDDCORE (BOD18)
12.6.3.2
Supported Modes
The BOD18/33 can operate in two different modes:
• Continuous mode
• Sampling mode
The Operation Mode bit in the Control Register (BOD18/33CTRL.MODE) is used to select the
mode of operation.
mode of operation.
POWER
MANAGER (PM)
Interrupt
BOD33
VDDCORE
VDDANA
Res
e
t
B
O
D33 De
tec
te
d
Cont mo
de
O
nesh
o
t m
ode
BO
D33
Hys
t
BO
D3
3 L
e
v
el
BO
D3
3 R
e
s
e
t
NVIC
BOD18
BO
D18 Detected
Cont m
ode
O
nes
h
o
t m
o
d
e
BOD18 H
y
st
BOD1
8 L
e
vel
BO
D1
8
R
e
s
e
t
SCIF
BSCIF