SMART ARM-based Microcontrollers
AT11512: SAM L Brown Out Detector (BOD) Driver
APPLICATION NOTE
Introduction
®
®
This driver for Atmel | SMART ARM -based microcontrollers provides an
interface for the configuration and management of the device's Brown Out
Detector (BOD) modules, to detect and respond to under-voltage events and
take an appropriate action.
The following peripheral is used by this module:
•
SUPC (Supply Controller)
The following devices can use this module:
•
Atmel | SMART SAM L21/L22
The outline of this documentation is as follows:
•
Prerequisites
•
Module Overview
•
Special Considerations
•
Extra Information
•
Examples
•
API Overview
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
Table of Contents
Introduction......................................................................................................................1
1. Software License....................................................................................................... 3
2. Prerequisites..............................................................................................................4
3. Module Overview....................................................................................................... 5
4. Special Considerations.............................................................................................. 6
5. Extra Information....................................................................................................... 7
6. Examples................................................................................................................... 8
7. API Overview............................................................................................................. 9
7.1.
7.2.
7.3.
Structure Definitions..................................................................................................................... 9
7.1.1.
Struct bod12_config.......................................................................................................9
7.1.2.
Struct bod33_config.......................................................................................................9
Function Definitions....................................................................................................................10
7.2.1.
Configuration and Initialization.....................................................................................10
Enumeration Definitions............................................................................................................. 14
7.3.1.
Enum bod12_action.....................................................................................................14
7.3.2.
Enum bod12_mode_in_active..................................................................................... 14
7.3.3.
Enum bod12_mode_in_standby.................................................................................. 14
7.3.4.
Enum bod12_prescale.................................................................................................15
7.3.5.
Enum bod33_action.....................................................................................................15
7.3.6.
Enum bod33_mode_in_active..................................................................................... 16
7.3.7.
Enum bod33_mode_in_standby.................................................................................. 16
7.3.8.
Enum bod33_prescale.................................................................................................16
7.3.9.
Enum bod33_vol_monitor............................................................................................17
8. Extra Information for BOD Driver.............................................................................18
8.1.
8.2.
8.3.
8.4.
Acronyms....................................................................................................................................18
Dependencies.............................................................................................................................18
Errata..........................................................................................................................................18
Module History............................................................................................................................18
9. Examples for BOD Driver........................................................................................ 19
9.1.
9.2.
Quick Start Guide for BOD - Basic............................................................................................. 19
9.1.1.
Quick Start................................................................................................................... 19
9.1.2.
Use Case..................................................................................................................... 20
Application Use Case for BOD - Application.............................................................................. 20
10. Document Revision History..................................................................................... 21
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
2
1.
Software License
Redistribution and use in source and binary forms, with or without modification, are permitted provided
that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other materials provided with the distribution.
3. The name of Atmel may not be used to endorse or promote products derived from this software without
specific prior written permission.
4. This software may only be redistributed and used in connection with an Atmel microcontroller product.
THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY AND SPECIFICALLY
DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
3
2.
Prerequisites
There are no prerequisites for this module.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
4
3.
Module Overview
The SAM devices contain a number of Brown Out Detector (BOD) modules. Each BOD monitors the
supply voltage for any dips that go below the set threshold for the module. In case of a BOD detection the
BOD will either reset the system or raise a hardware interrupt so that a safe power-down sequence can
be attempted.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
5
4.
Special Considerations
The time between a BOD interrupt being raised and a failure of the processor to continue executing (in
the case of a core power failure) is system specific; care must be taken that all critical BOD detection
events can complete within the amount of time available.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
6
5.
Extra Information
For extra information, see Extra Information for BOD Driver. This includes:
•
Acronyms
•
Dependencies
•
Errata
•
Module History
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
7
6.
Examples
For a list of examples related to this driver, see Examples for BOD Driver.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
8
7.
API Overview
7.1.
Structure Definitions
7.1.1.
Struct bod12_config
Configuration structure for a BOD12 module.
Table 7-1. Members
Type
Name
Description
enum bod12_action
action
Action to perform when a low power detection is
made
bool
hysteresis
If true, enables detection hysteresis
uint8_t
level
BOD12 level to trigger at (see electrical section of
device datasheet)
enum bod12_mode_in_active
mode_in_active
BOD12 configuration in active mode
enum bod12_mode_in_standby mode_in_standby BOD12 configuration in backup sleep mode
7.1.2.
enum bod12_prescale
prescaler
Input sampler clock prescaler factor, to reduce the
1KHz clock from the ULP32K to lower the sampling
rate of the BOD12
bool
run_in_standby
If true, the BOD12 is kept enabled and sampled
during device sleep
Struct bod33_config
Configuration structure for a BOD33 module.
Table 7-2. Members
Type
Name
Description
enum bod33_action
action
Action to perform when a low power detection is
made
uint8_t
backuplevel
BOD33 level to trigger at when monitors VBAT or in
backup sleep mode
bool
hysteresis
If true, enables detection hysteresis
uint8_t
level
BOD33 level to trigger at when monitors VDD excpt
in backup sleep mode
enum bod33_mode_in_active
mode_in_active
BOD33 configuration in active mode
enum bod33_mode_in_standby mode_in_standby BOD33 configuration in backup sleep mode
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
9
Type
Name
Description
enum bod33_vol_monitor
monitor
Voltage monitored in active and standby mode
enum bod33_prescale
prescaler
Input sampler clock prescaler factor, to reduce the
1KHz clock from the ULP32K to lower the sampling
rate of the BOD33
bool
run_in_backup
If true, the BOD33 is kept enabled and sampled
during device sleep
bool
run_in_standby
If true, the BOD33 is kept enabled and sampled
during standby
7.2.
Function Definitions
7.2.1.
Configuration and Initialization
7.2.1.1.
Function bod33_get_config_defaults()
Get default BOD33 configuration.
void bod33_get_config_defaults(
struct bod33_config *const conf)
The default BOD33 configuration is:
•
Clock prescaler set to divide the input clock by two
•
Continuous in active mode
•
Continuous in standby mode
•
Monitor the VDD power pin
•
No action on BOD33 detect
•
Hysteresis enabled
•
BOD33 level 0x7 on VDD
•
BOD33 level 0x7 on VBAT
•
BOD33 kept enabled during device sleep
•
BOD33 kept enabled during standby
Table 7-3. Parameters
7.2.1.2.
Data direction
Parameter name
Description
[out]
conf
BOD33 configuration struct to set to default settings
Function bod33_set_config()
Configure a Brown Out Detector module.
enum status_code bod33_set_config(
struct bod33_config *const conf)
Configures a given BOD module with the settings stored in the given configuration structure.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
10
Table 7-4. Parameters
Data direction
Parameter name
Description
[in]
conf
Configuration settings to use for the specified BOD33
Table 7-5. Return Values
7.2.1.3.
Return value
Description
STATUS_OK
Operation completed successfully
STATUS_ERR_INVALID_ARG
An invalid BOD was supplied
STATUS_ERR_INVALID_OPTION
The requested BOD level was outside the acceptable range
Function bod33_enable()
Enables a configured BOD33 module.
enum status_code bod33_enable( void )
Enables the BOD33 module that has been previously configured.
Returns
Error code indicating the status of the enable operation.
Table 7-6. Return Values
7.2.1.4.
Return value
Description
STATUS_OK
If the BOD33 was successfully enabled
Function bod33_disable()
Disables an enabled BOD33 module.
enum status_code bod33_disable( void )
Disables the BOD33 module that was previously enabled.
Returns
Error code indicating the status of the disable operation.
Table 7-7. Return Values
7.2.1.5.
Return value
Description
STATUS_OK
If the BOD33 was successfully disabled
Function bod33_is_detected()
Checks if the BOD33 low voltage detection has occurred.
bool bod33_is_detected( void )
Determines if the BOD33 has detected a voltage lower than its configured threshold.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
11
Returns
Detection status of the BOD33.
Table 7-8. Return Values
7.2.1.6.
Return value
Description
true
If the BOD33 has detected a low voltage condition
false
If the BOD33 has not detected a low voltage condition
Function bod33_clear_detected()
Clears the low voltage detection state of the BOD33.
void bod33_clear_detected( void )
Clears the low voltage condition of BOD33 module, so that new low voltage conditions can be detected.
7.2.1.7.
Function bod12_get_config_defaults()
Get default BOD12 configuration.
void bod12_get_config_defaults(
struct bod12_config *const conf)
The default BOD12 configuration is:
•
Clock prescaler set to divide the input clock by two
•
Continuous in active mode
•
Continuous in standby mode
•
Reset on BOD12 detect
•
Hysteresis enabled
•
BOD12 level 0x12
•
BOD12 kept enabled during device sleep
Table 7-9. Parameters
7.2.1.8.
Data direction
Parameter name
Description
[out]
conf
BOD12 configuration struct to set to default settings
Function bod12_set_config()
Configure a Brown Out Detector module.
enum status_code bod12_set_config(
struct bod12_config *const conf)
Configures a given BOD module with the settings stored in the given configuration structure.
Table 7-10. Parameters
Data direction
Parameter name
Description
[in]
conf
Configuration settings to use for the specified BOD12
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
12
Table 7-11. Return Values
7.2.1.9.
Return value
Description
STATUS_OK
Operation completed successfully
STATUS_ERR_INVALID_ARG
An invalid BOD was supplied
STATUS_ERR_INVALID_OPTION
The requested BOD level was outside the acceptable range
Function bod12_enable()
Enables a configured BOD12 module.
enum status_code bod12_enable( void )
Enables the BOD12 module that has been previously configured.
Returns
Error code indicating the status of the enable operation.
Table 7-12. Return Values
Return value
Description
STATUS_OK
If the BOD12 was successfully enabled
7.2.1.10. Function bod12_disable()
Disables an enabled BOD12 module.
enum status_code bod12_disable( void )
Disables the BOD12 module that was previously enabled.
Returns
Error code indicating the status of the disable operation.
Table 7-13. Return Values
Return value
Description
STATUS_OK
If the BOD12 was successfully disabled
7.2.1.11. Function bod12_is_detected()
Checks if the BOD12 low voltage detection has occurred.
bool bod12_is_detected( void )
Determines if the BOD12 has detected a voltage lower than its configured threshold.
Returns
Detection status of the BOD12.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
13
Table 7-14. Return Values
Return value
Description
true
If the BOD12 has detected a low voltage condition
false
If the BOD12 has not detected a low voltage condition
7.2.1.12. Function bod12_clear_detected()
Clears the low voltage detection state of the BOD12.
void bod12_clear_detected( void )
Clears the low voltage condition of BOD12 module, so that new low voltage conditions can be detected.
7.3.
Enumeration Definitions
7.3.1.
Enum bod12_action
List of possible BOD12 actions when a BOD12 module detects a brown-out condition.
Table 7-15. Members
Enum value
Description
BOD12_ACTION_NONE
A BOD12 detect will do nothing, and the BOD12 state must be polled
BOD12_ACTION_RESET
A BOD12 detect will reset the device
BOD12_ACTION_INTERRUPT A BOD12 detect will fire an interrupt
7.3.2.
Enum bod12_mode_in_active
List of possible BOD12 module voltage sampling modes in active sleep mode.
Table 7-16. Members
Enum value
Description
BOD12_ACTCFG_CONTINUOUS BOD12 will sample the supply line continuously
BOD12_ACTCFG_SAMPLED
7.3.3.
BOD12 will use the BOD12 sampling clock (1KHz) to sample the
supply line
Enum bod12_mode_in_standby
List of possible BOD12 module voltage sampling modes in standby sleep mode.
Table 7-17. Members
Enum value
Description
BOD12_STDBYCFG_CONTINUOUS BOD12 will sample the supply line continuously
BOD12_STDBYCFG_SAMPLED
BOD12 will use the BOD12 sampling clock (1KHz) to sample the
supply line
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
14
7.3.4.
Enum bod12_prescale
List of possible BOD12 controller prescaler values, to reduce the sampling speed of a BOD12 to lower the
power consumption.
Table 7-18. Members
7.3.5.
Enum value
Description
BOD12_PRESCALE_DIV_2
Divide input prescaler clock by 2
BOD12_PRESCALE_DIV_4
Divide input prescaler clock by 4
BOD12_PRESCALE_DIV_8
Divide input prescaler clock by 8
BOD12_PRESCALE_DIV_16
Divide input prescaler clock by 16
BOD12_PRESCALE_DIV_32
Divide input prescaler clock by 32
BOD12_PRESCALE_DIV_64
Divide input prescaler clock by 64
BOD12_PRESCALE_DIV_128
Divide input prescaler clock by 128
BOD12_PRESCALE_DIV_256
Divide input prescaler clock by 256
BOD12_PRESCALE_DIV_512
Divide input prescaler clock by 512
BOD12_PRESCALE_DIV_1024
Divide input prescaler clock by 1024
BOD12_PRESCALE_DIV_2048
Divide input prescaler clock by 2048
BOD12_PRESCALE_DIV_4096
Divide input prescaler clock by 4096
BOD12_PRESCALE_DIV_8192
Divide input prescaler clock by 8192
BOD12_PRESCALE_DIV_16384
Divide input prescaler clock by 16384
BOD12_PRESCALE_DIV_32768
Divide input prescaler clock by 32768
BOD12_PRESCALE_DIV_65536
Divide input prescaler clock by 65536
Enum bod33_action
List of possible BOD33 actions when a BOD33 module detects a brown-out condition.
Table 7-19. Members
Enum value
Description
BOD33_ACTION_NONE
A BOD33 detect will do nothing, and the BOD33 state must be polled
BOD33_ACTION_RESET
A BOD33 detect will reset the device
BOD33_ACTION_INTERRUPT A BOD33 detect will fire an interrupt
BOD33_ACTION_BACKUP
A BOD33 detect will put the device in backup sleep mode
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
15
7.3.6.
Enum bod33_mode_in_active
List of possible BOD33 module voltage sampling modes in active sleep mode.
Table 7-20. Members
Enum value
Description
BOD33_ACTCFG_CONTINUOUS BOD33 will sample the supply line continuously
BOD33_ACTCFG_SAMPLED
7.3.7.
BOD33 will use the BOD33 sampling clock (1KHz) to sample the
supply line
Enum bod33_mode_in_standby
List of possible BOD33 module voltage sampling modes in standby sleep mode.
Table 7-21. Members
Enum value
Description
BOD33_STDBYCFG_CONTINUOUS BOD33 will sample the supply line continuously
BOD33_STDBYCFG_SAMPLED
7.3.8.
BOD33 will use the BOD33 sampling clock (1KHz) to sample the
supply line
Enum bod33_prescale
List of possible BOD33 controller prescaler values, to reduce the sampling speed of a BOD33 to lower the
power consumption.
Table 7-22. Members
Enum value
Description
BOD33_PRESCALE_DIV_2
Divide input prescaler clock by 2
BOD33_PRESCALE_DIV_4
Divide input prescaler clock by 4
BOD33_PRESCALE_DIV_8
Divide input prescaler clock by 8
BOD33_PRESCALE_DIV_16
Divide input prescaler clock by 16
BOD33_PRESCALE_DIV_32
Divide input prescaler clock by 32
BOD33_PRESCALE_DIV_64
Divide input prescaler clock by 64
BOD33_PRESCALE_DIV_128
Divide input prescaler clock by 128
BOD33_PRESCALE_DIV_256
Divide input prescaler clock by 256
BOD33_PRESCALE_DIV_512
Divide input prescaler clock by 512
BOD33_PRESCALE_DIV_1024
Divide input prescaler clock by 1024
BOD33_PRESCALE_DIV_2048
Divide input prescaler clock by 2048
BOD33_PRESCALE_DIV_4096
Divide input prescaler clock by 4096
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
16
7.3.9.
Enum value
Description
BOD33_PRESCALE_DIV_8192
Divide input prescaler clock by 8192
BOD33_PRESCALE_DIV_16384
Divide input prescaler clock by 16384
BOD33_PRESCALE_DIV_32768
Divide input prescaler clock by 32768
BOD33_PRESCALE_DIV_65536
Divide input prescaler clock by 65536
Enum bod33_vol_monitor
List of possible BOD33 module voltage monitored in active and standby mode.
Table 7-23. Members
Enum value
Description
BOD33_VMON_VDD
The BOD33 monitors the VDD power pin in active and standby mode
BOD33_VMON_VBAT
The BOD33 monitors the VBAT power pin in active and standby mode
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
17
8.
Extra Information for BOD Driver
8.1.
Acronyms
Below is a table listing the acronyms used in this module, along with their intended meanings.
8.2.
Acronym
Definition
BOD
Brown Out Detector
Dependencies
This driver has the following dependencies:
•
8.3.
None
Errata
There are no errata related to this driver.
8.4.
Module History
An overview of the module history is presented in the table below, with details on the enhancements and
fixes made to the module since its first release. The current version of this corresponds to the newest
version in the table.
Changelog
Initial Release
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
18
9.
Examples for BOD Driver
This is a list of the available Quick Start guides (QSGs) and example applications for SAM Brown Out
Detector (BOD) Driver. QSGs are simple examples with step-by-step instructions to configure and use
this driver in a selection of use cases. Note that a QSG can be compiled as a standalone application or
be added to the user application.
•
•
9.1.
Quick Start Guide for BOD - Basic
Application Use Case for BOD - Application
Quick Start Guide for BOD - Basic
In this use case, the BOD33 and BOD12 will be configured with the following settings:
•
Continuous sampling mode
•
Prescaler setting of 2
•
Reset action on low voltage detect
9.1.1.
Quick Start
9.1.1.1.
Prerequisites
There are no special setup requirements for this use-case.
9.1.1.2.
Code
Copy-paste the following setup code to your user application:
static void configure_bod33(void)
{
struct bod33_config config_bod33;
bod33_get_config_defaults(&config_bod33);
bod33_set_config(&config_bod33);
}
bod33_enable();
static void configure_bod12(void)
{
struct bod12_config config_bod12;
bod12_get_config_defaults(&config_bod12);
bod12_set_config(&config_bod12);
}
bod12_enable();
Add to user application initialization (typically the start of main()):
configure_bod33();
configure_bod12();
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
19
9.1.1.3.
Workflow
1.
Create a BOD33 module configuration struct, which can be filled out to adjust the configuration of a
physical BOD peripheral.
struct bod33_config config_bod33;
2.
Initialize the BOD33 configuration struct with the module's default values.
bod33_get_config_defaults(&config_bod33);
3.
Note: This should always be performed before using the configuration struct to ensure that all
values are initialized to known default settings.
Configure the BOD33 module with the desired settings.
bod33_set_config(&config_bod33);
4.
Enable the BOD33 module so that it will monitor the power supply voltage.
bod33_enable();
The workflow of the BOD12 is the same as for the BOD33.
9.1.2.
Use Case
9.1.2.1.
Code
Copy-paste the following code to your user application:
while (true) {
/* Infinite loop */
}
9.1.2.2.
Workflow
1.
Enter an infinite loop so that the BOD can continue to monitor the supply voltage level.
while (true) {
/* Infinite loop */
}
9.2.
Application Use Case for BOD - Application
The preferred method of setting BOD33 levels and settings is through the fuses. When it is desirable to
set it in software, see the below use case.
In this use case, a new BOD33 level might be set in SW if the clock settings are adjusted up after a
battery has charged to a higher level. When the battery discharges, the chip will reset when the battery
level is below SW BOD33 level. Now the chip will run at a lower clock rate and the BOD33 level from
fuse. The chip should always measure the voltage before adjusting the frequency up.
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
20
10.
Document Revision History
Doc. Rev.
Date
Comments
42453B
12/2015
Added support for SAM L22
42453A
06/2015
Initial document release
Atmel AT11512: SAM L Brown Out Detector (BOD) Driver [APPLICATION NOTE]
Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
21
Atmel Corporation
©
1600 Technology Drive, San Jose, CA 95110 USA
T: (+1)(408) 441.0311
F: (+1)(408) 436.4200
|
www.atmel.com
2015 Atmel Corporation. / Rev.: Atmel-42453B-SAM-Brown-Out-Detector-BOD-Driver_AT11512_Application Note-12/2015
®
®
Atmel , Atmel logo and combinations thereof, Enabling Unlimited Possibilities , and others are registered trademarks or trademarks of Atmel Corporation in U.S. and
®
®
other countries. ARM , ARM Connected logo, and others are registered trademarks of ARM Ltd. Other terms and product names may be trademarks of others.
DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any
intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND
CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED
OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS AND PROFITS, BUSINESS
INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this
document and reserves the right to make changes to specifications and products descriptions at any time without notice. Atmel does not make any commitment to
update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive
applications. Atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life.
SAFETY-CRITICAL, MILITARY, AND AUTOMOTIVE APPLICATIONS DISCLAIMER: Atmel products are not designed for and will not be used in connection with any
applications where the failure of such products would reasonably be expected to result in significant personal injury or death (“Safety-Critical Applications”) without
an Atmel officer's specific written consent. Safety-Critical Applications include, without limitation, life support devices and systems, equipment or systems for the
operation of nuclear facilities and weapons systems. Atmel products are not designed nor intended for use in military or aerospace applications or environments
unless specifically designated by Atmel as military-grade. Atmel products are not designed nor intended for use in automotive applications unless specifically
designated by Atmel as automotive-grade.