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PDF SAML21E15A Data sheet ( Hoja de datos )

Número de pieza SAML21E15A
Descripción SMART ARM-based Flash MCU
Fabricantes ATMEL Corporation 
Logotipo ATMEL Corporation Logotipo



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No Preview Available ! SAML21E15A Hoja de datos, Descripción, Manual

SMART ARM-based Microcontroller
SAM L21E / SAM L21G / SAM L21J
DATASHEET PRELIMINARY
Introduction
Atmel® | SMART SAM L21 is a series of Ultra low-power microcontrollers
using the 32-bit ARM® Cortex®-M0+ processor at max. 48MHz (2.46
CoreMark®/MHz) and up to 256KB Flash and 44KB of SRAM in a 32-64 pin
package. The sophisticated power management technologies, such as
power domain gating, SleepWalking, Ultra low-power peripherals and more,
allow for very low current consumptions. The highly configurable peripherals
include a touch controller supporting capacitive interfaces with proximity
sensing.
Features
Processor
ARM Cortex-M0+ CPU running at up to 48MHz
• Single-cycle hardware multiplier
• Micro Trace Buffer
Memories
32/64/128/256KB in-system self-programmable Flash
1/2/4/8KB Flash Read-While-Write section
4/8/16/32KB SRAM Main Memory
2/4/8/8KB SRAM Low power Memory
System
Power-on reset (POR) and brown-out detection (BOD)
Internal and external clock options
External Interrupt Controller (EIC)
16 external interrupts
One non-maskable interrupt
Two-pin Serial Wire Debug (SWD) programming, test and
debugging interface
Low Power
Idle, Standby, Backup, and Off sleep modes
SleepWalking peripherals
Atmel-42385C-SAM L21_Datasheet_Preliminary-03/2015

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SAML21E15A pdf
11.4. High-Speed Bus System............................................................................................................ 45
12. PAC - Peripheral Access Controller.........................................................................50
12.1. Overview.....................................................................................................................................50
12.2. Features..................................................................................................................................... 50
12.3. Block Diagram............................................................................................................................ 50
12.4. Product Dependencies............................................................................................................... 50
12.5. Functional Description................................................................................................................51
12.6. Register Summary......................................................................................................................55
12.7. Register Description................................................................................................................... 56
13. Peripherals Configuration Summary........................................................................75
14. DSU - Device Service Unit...................................................................................... 78
14.1. Overview.....................................................................................................................................78
14.2. Features..................................................................................................................................... 78
14.3. Block Diagram............................................................................................................................ 78
14.4. Signal Description.......................................................................................................................79
14.5. Product Dependencies............................................................................................................... 79
14.6. Debug Operation........................................................................................................................ 80
14.7. Chip Erase..................................................................................................................................81
14.8. Programming..............................................................................................................................82
14.9. Intellectual Property Protection...................................................................................................82
14.10. Device Identification................................................................................................................... 84
14.11. Functional Description................................................................................................................85
14.12. Register Summary..................................................................................................................... 90
14.13. Register Description...................................................................................................................92
15. Clock System......................................................................................................... 116
15.1. Clock Distribution......................................................................................................................116
15.2. Synchronous and Asynchronous Clocks.................................................................................. 117
15.3. Register Synchronization..........................................................................................................117
15.4. Enabling a Peripheral............................................................................................................... 120
15.5. On Demand Clock Requests....................................................................................................120
15.6. Power Consumption vs. Speed................................................................................................ 121
15.7. Clocks after Reset.................................................................................................................... 121
16. GCLK - Generic Clock Controller.......................................................................... 122
16.1. Overview...................................................................................................................................122
16.2. Features................................................................................................................................... 122
16.3. Block Diagram.......................................................................................................................... 122
16.4. Signal Description.....................................................................................................................123
16.5. Product Dependencies............................................................................................................. 123
16.6. Functional Description..............................................................................................................124
16.7. Register Summary....................................................................................................................128
16.8. Register Description................................................................................................................. 129
17. MCLK – Main Clock...............................................................................................138
17.1. Overview...................................................................................................................................138
Atmel SAM L21E / SAM L21G / SAM L21J [DATASHEET]
Atmel-42385C-SAM L21_Datasheet_Preliminary-03/2015
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SAML21E15A arduino
41. ADC – Analog-to-Digital Converter........................................................................999
41.1. Overview...................................................................................................................................999
41.2. Features................................................................................................................................... 999
41.3. Block Diagram........................................................................................................................ 1000
41.4. Signal Description...................................................................................................................1000
41.5. Product Dependencies........................................................................................................... 1001
41.6. Functional Description............................................................................................................1002
41.7. Register Summary.................................................................................................................. 1011
41.8. Register Description............................................................................................................... 1012
42. AC – Analog Comparators...................................................................................1040
42.1. Overview.................................................................................................................................1040
42.2. Features................................................................................................................................. 1040
42.3. Block Diagram........................................................................................................................ 1041
42.4. Signal Description...................................................................................................................1041
42.5. Product Dependencies........................................................................................................... 1041
42.6. Functional Description............................................................................................................1043
42.7. Register Summary..................................................................................................................1051
42.8. Register Description............................................................................................................... 1052
43. DAC – Digital-to-Analog Converter......................................................................1069
43.1. Overview.................................................................................................................................1069
43.2. Features................................................................................................................................. 1069
43.3. Block Diagram........................................................................................................................ 1069
43.4. Signal Description...................................................................................................................1070
43.5. Product Dependencies........................................................................................................... 1070
43.6. Functional Description............................................................................................................1071
43.7. Register Summary..................................................................................................................1079
43.8. Register Description............................................................................................................... 1079
44. PTC - Peripheral Touch Controller....................................................................... 1101
44.1. Overview.................................................................................................................................1101
44.2. Features..................................................................................................................................1101
44.3. Block Diagram........................................................................................................................ 1102
44.4. Signal Description...................................................................................................................1103
44.5. Product Dependencies........................................................................................................... 1103
44.6. Functional Description............................................................................................................ 1104
45. Electrical Characteristics......................................................................................1105
45.1. Disclaimer............................................................................................................................... 1105
45.2. Absolute Maximum Ratings.................................................................................................... 1105
45.3. General Operating Ratings..................................................................................................... 1105
45.4. Supply Characteristics............................................................................................................ 1105
45.5. Maximum Clock Frequencies................................................................................................. 1106
45.6. Power Consumption............................................................................................................... 1108
45.7. Wake-up time.......................................................................................................................... 1111
45.8. Peripheral Power Consumption.............................................................................................. 1112
45.9. IO Pin Characteristics............................................................................................................. 1114
Atmel SAM L21E / SAM L21G / SAM L21J [DATASHEET]
Atmel-42385C-SAM L21_Datasheet_Preliminary-03/2015
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