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PDF SAMC21J18A Data sheet ( Hoja de datos )

Número de pieza SAMC21J18A
Descripción SMART ARM-Based Microcontrollers
Fabricantes ATMEL Corporation 
Logotipo ATMEL Corporation Logotipo



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No Preview Available ! SAMC21J18A Hoja de datos, Descripción, Manual

SMART ARM-Based Microcontrollers
SAM C21E / SAM C21G / SAM C21J
DATASHEET PRELIMINARY
Introduction
The Atmel® | SMARTSAM C21 is a series of microcontrollers optimized for
industrial automation, appliances and other 5V applications using the 32-bit
ARM® Cortex®-M0+ processor, ranging from 32- to 64-pins with up to 256KB
Flash and 32KB of SRAM and operate at a maximum frequency of 48MHz
and reach 2.46 CoreMark®/MHz. The SAM C21 devices are designed for
simple and intuitive migration with identical peripheral modules, hex
compatible code, identical linear address map and pin compatible migration
paths between all devices in the product series. All devices include
intelligent and flexible peripherals, Atmel Event System for inter-peripheral
signaling, and support for capacitive touch button, slider and wheel user
interfaces.
SAM C21 devices are pin compatible to the SAM D family of general
purpose microcontrollers.
Features
Processor
ARM Cortex-M0+ CPU running at up to 48MHz
• Single-cycle hardware multiplier
• Micro Trace Buffer
• Memory Protection Unit (MPU)
Memories
32/64/128/256KB in-system self-programmable Flash
1/2/4/8KB independent self-programmable Flash for EEPROM
emulation
4/8/16/32KB SRAM Main Memory
System
Power-on reset (POR) and brown-out detection (BOD)
Internal and external clock options with 48MHz to 96MHz
Fractional Digital Phase Locked Loop (FDPLL96M)
External Interrupt Controller (EIC)
16 external interrupts
One non-maskable interrupt
Atmel-42365E-SAM C21_Datasheet_Preliminary-12/2015

1 page




SAMC21J18A pdf
11.4. High-Speed Bus System............................................................................................................ 43
12. PAC - Peripheral Access Controller.........................................................................46
12.1. Overview.....................................................................................................................................46
12.2. Features..................................................................................................................................... 46
12.3. Block Diagram............................................................................................................................ 46
12.4. Product Dependencies............................................................................................................... 46
12.5. Functional Description................................................................................................................47
12.6. Register Summary......................................................................................................................51
12.7. Register Description................................................................................................................... 51
13. Peripherals Configuration Summary........................................................................57
14. DSU - Device Service Unit...................................................................................... 59
14.1. Overview.....................................................................................................................................59
14.2. Features..................................................................................................................................... 59
14.3. Block Diagram............................................................................................................................ 60
14.4. Signal Description.......................................................................................................................60
14.5. Product Dependencies............................................................................................................... 60
14.6. Debug Operation........................................................................................................................ 61
14.7. Chip Erase..................................................................................................................................63
14.8. Programming..............................................................................................................................64
14.9. Intellectual Property Protection...................................................................................................64
14.10. Device Identification................................................................................................................... 66
14.11. Functional Description................................................................................................................67
14.12. Register Summary..................................................................................................................... 72
14.13. Register Description...................................................................................................................74
15. DIVAS – Divide and Square Root Accelerator.........................................................97
15.1. Overview.....................................................................................................................................97
15.2. Features..................................................................................................................................... 97
15.3. Block Diagram............................................................................................................................ 97
15.4. Signal Description.......................................................................................................................97
15.5. Product Dependencies............................................................................................................... 97
15.6. Functional Description................................................................................................................98
15.7. Register Summary....................................................................................................................101
15.8. Register Description................................................................................................................. 101
16. Clock System.........................................................................................................109
16.1. Clock Distribution......................................................................................................................109
16.2. Synchronous and Asynchronous Clocks.................................................................................. 110
16.3. Register Synchronization..........................................................................................................110
16.4. Enabling a Peripheral............................................................................................................... 112
16.5. On-demand, Clock Requests....................................................................................................112
16.6. Power Consumption vs. Speed................................................................................................ 113
16.7. Clocks after Reset.................................................................................................................... 113
17. GCLK - Generic Clock Controller...........................................................................114
17.1. Overview...................................................................................................................................114
Atmel SAM C21E / SAM C21G / SAM C21J [DATASHEET]
Atmel-42365E-SAM C21_Datasheet_Preliminary-12/2015
5

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SAMC21J18A arduino
40.8. Register Description................................................................................................................. 980
41. AC – Analog Comparators...................................................................................1006
41.1. Overview.................................................................................................................................1006
41.2. Features................................................................................................................................. 1006
41.3. Block Diagram........................................................................................................................ 1007
41.4. Signal Description...................................................................................................................1008
41.5. Product Dependencies........................................................................................................... 1008
41.6. Functional Description............................................................................................................1010
41.7. Register Summary..................................................................................................................1019
41.8. Register Description............................................................................................................... 1019
42. DAC – Digital-to-Analog Converter......................................................................1037
42.1. Overview.................................................................................................................................1037
42.2. Features................................................................................................................................. 1037
42.3. Block Diagram........................................................................................................................ 1037
42.4. Signal Description...................................................................................................................1037
42.5. Product Dependencies........................................................................................................... 1037
42.6. Functional Description............................................................................................................1039
42.7. Register Summary..................................................................................................................1044
42.8. Register Description............................................................................................................... 1044
43. PTC - Peripheral Touch Controller.......................................................................1058
43.1. Overview.................................................................................................................................1058
43.2. Features................................................................................................................................. 1058
43.3. Block Diagram........................................................................................................................ 1059
43.4. Signal Description...................................................................................................................1060
43.5. Product Dependencies........................................................................................................... 1060
43.6. Functional Description............................................................................................................1061
44. TSENS – Temperature Sensor............................................................................ 1063
44.1. Overview.................................................................................................................................1063
44.2. Features................................................................................................................................. 1063
44.3. Block Diagram........................................................................................................................ 1063
44.4. Signal Description...................................................................................................................1063
44.5. Product Dependencies........................................................................................................... 1064
44.6. Functional Description............................................................................................................1065
44.7. Register Summary..................................................................................................................1069
44.8. Register Description............................................................................................................... 1069
45. FREQM – Frequency Meter................................................................................ 1090
45.1. Overview.................................................................................................................................1090
45.2. Features................................................................................................................................. 1090
45.3. Block Diagram........................................................................................................................ 1090
45.4. Signal Description...................................................................................................................1090
45.5. Product Dependencies........................................................................................................... 1090
45.6. Functional Description............................................................................................................1092
45.7. Register Summary..................................................................................................................1095
45.8. Register Description............................................................................................................... 1095
Atmel SAM C21E / SAM C21G / SAM C21J [DATASHEET]
Atmel-42365E-SAM C21_Datasheet_Preliminary-12/2015
11

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