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| SAM4L Datasheet, PDF (159/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU | |||
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Figure 12-2. BOD18/33 Block Diagram
VDDANA
VDDCORE
ATSAM4L4/L2
BOD33
BOD18
BSSCCIIFF
POWER
MANAGER (PM)
NVIC
12.6.3.1
12.6.3.2
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 Section 42.8 âAnalog Characteristicsâ on page 1133 for parametric details.
Monitored Voltages
⢠VDDIO (BOD33)
⢠VDDCORE (BOD18)
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.
42023CâSAMâ02/2013
159
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