Atmel XMEGA B Manuals

Manuals and User Guides for Atmel XMEGA B. We have 1 Atmel XMEGA B manual available for free PDF download: User Manual

Atmel XMEGA B User Manual (415 pages)

8-bit Microcontroller

Brand: Atmel | Category: Controller | Size: 6 MB

1 About the Manual

2
- Reading the Manual
  2
- Resources
  2
- Recommended Reading
  2
2 Overview

3
3 Atmel AVR CPU

7
- Features
  7
- Overview
  7
- Architectural Overview
  7
- ALU - Arithmetic Logic Unit
  8
- Program Flow
  9
- Instruction Execution Timing
  9
- Status Register
  10
- Stack and Stack Pointer
  10
- Register File
  10
- RAMP and Extended Indirect Registers
  12
- Accessing 16-Bit Registers
  13
- Configuration Change Protection
  13
- Fuse Lock
  14
- Register Descriptions
  15
- Register Summary
  19
4 Memories

20
- Features
  20
- Overview
  20
- Flash Program Memory
  20
- Fuses and Lockbits
  22
- Data Memory
  22
- Internal SRAM
  23
- Eeprom
  23
- I/O Memory
  23
- Data Memory and Bus Arbitration
  23
- Memory Timing
  24
- Device ID and Revision
  24
- JTAG Disable
  25
- I/O Memory Protection
  25
- Register Description - NVM Controller
  26
- Register Descriptions - Fuses and Lock Bits
  30
- Register Description - Production Signature Row
  36
- Register Description - General Purpose I/O Memory
  42
- Register Descriptions - MCU Control
  42
- Register Summary - NVM Controller
  46
- Register Summary - Fuses and Lock Bits
  46
- Register Summary - Production Signature Row
  47
- Register Summary - General Purpose I/O Registers
  48
- Register Summary - MCU Control
  48
- Interrupt Vector Summary - NVM Controller
  48
5 DMAC - Direct Memory Access Controller

49
- Features
  49
- Overview
  49
- DMA Transaction
  50
- Transfer Triggers
  51
- Addressing
  51
- Priority between Channels
  51
- Double Buffering
  51
- Transfer Buffers
  51
- Error Detection
  52
- Software Reset
  52
- Protection
  52
- Interrupts
  52
- Register Description - DMA Controller
  53
- Register Description - DMA Channel
  55
- Register Summary - DMA Controller
  64
- Register Summary - DMA Channel
  64
- DMA Interrupt Vector Summary
  64
6 Event System

65
- Features
  65
- Overview
  65
- Events
  66
- Event Routing Network
  68
- Event Timing
  69
- Filtering
  70
- Quadrature Decoder
  70
- Register Description
  72
- Register Summary
  76
7 System Clock and Clock Options

77
8 Power Management and Sleep Modes

97
- Features
  97
- Overview
  97
- Sleep Modes
  97
- Power Reduction Registers
  99
- Minimizing Power Consumption
  99
- Register Description - Sleep
  101
- Register Description - Power Reduction
  101
- Register Summary - Sleep
  104
- Register Summary - Power Reduction
  104
9 Reset System

105
- Features
  105
- Overview
  105
- Reset Sequence
  106
- Reset Sources
  107
- Register Description
  111
- Register Summary
  112
10 WDT - Watchdog Timer

113
- Features
  113
- Overview
  113
- Normal Mode Operation
  113
- Window Mode Operation
  114
- Watchdog Timer Clock
  114
- Configuration Protection and Lock
  114
- Registers Description
  115
- Register Summary
  117
11 Interrupts and Programmable Multilevel Interrupt Controller

118
- Features
  118
- Overview
  118
- Operation
  118
- Interrupts
  119
- Interrupt Level
  121
- Interrupt Priority
  121
- Interrupt Vector Locations
  123
- Register Description
  124
- Register Summary
  125
12 I/O Ports

126
- Features
  126
- Overview
  126
- I/O Pin Use and Configuration
  127
- Reading the Pin Value
  131
- Input Sense Configuration
  132
- Port Interrupt
  132
- Port Event
  133
- Alternate Port Functions
  134
- Clock and Event Output
  135
- Multi-Pin Configuration
  135
- Virtual Ports
  135
- Register Descriptions - Ports
  136
- Register Descriptions - Port Configuration
  143
- Register Descriptions - Virtual Port
  147
- Register Summary - Ports
  149
- Register Summary - Port Configuration
  149
- Register Summary - Virtual Ports
  149
- Interrupt Vector Summary - Ports
  150
13 TC0/1 - 16-Bit Timer/Counter Type 0 and 1

151
- Features
  151
- Overview
  151
- Block Diagram
  153
- Clock and Event Sources
  154
- Double Buffering
  154
- Counter Operation
  155
- Capture Channel
  157
- Compare Channel
  160
- Interrupts and Events
  163
- DMA Support
  163
- Timer/Counter Commands
  163
- Register Description
  164
- Register Summary
  175
- Interrupt Vector Summary
  175
14 TC2 - 16-Bit Timer/Counter Type 2

176
- Features
  176
- Overview
  176
- Block Diagram
  177
- Clock Sources
  177
- Counter Operation
  178
- Compare Channel
  178
- Interrupts and Events
  180
- DMA Support
  180
- Timer/Counter Commands
  180
- Register Description
  181
- Register Summary
  187
- Interrupt Vector Summary
  187
15 Awex - Advanced Waveform Extension

188
- Features
  188
- Overview
  188
- Port Override
  189
- Dead-Time Insertion
  190
- Pattern Generation
  191
- Fault Protection
  192
- Register Description
  194
- Register Summary
  198
16 Hi-Res - High-Resolution Extension

199
- Features
  199
- Overview
  199
- Register Description
  200
- Register Summary
  200
17 RTC - Real-Time Counter

201
- Features
  201
- Overview
  201
- Register Descriptions
  203
- Register Summary
  208
- Interrupt Vector Summary
  208
18 USB - Universal Serial Bus Interface

209
- Features
  209
- Overview
  209
- Operation
  210
- SRAM Memory Mapping
  214
- Clock Generation
  214
- Ping-Pong Operation
  215
- Multipacket Transfers
  216
- Auto Zero Length Packet
  217
- Transaction Complete FIFO
  217
- Interrupts and Events
  218
- VBUS Detection
  219
- On-Chip Debug
  220
- Register Description - USB
  221
- Register Description - USB Endpoint
  228
- Register Description - Frame
  233
- Register Summary - USB Module
  234
- Register Summary - USB Endpoint
  234
- Register Summary - Frame
  234
- USB Interrupt Vector Summary
  234
19 TWI - Two-Wire Interface

235
- Features
  235
- Overview
  235
- General TWI Bus Concepts
  236
- TWI Bus State Logic
  241
- TWI Master Operation
  242
- TWI Slave Operation
  244
- Enabling External Driver Interface
  245
- Register Description - TWI
  246
- Register Description - TWI Master
  247
- Register Description - TWI Slave
  252
- Register Summary - TWI
  257
- Register Summary - TWI Master
  257
- Register Summary - TWI Slave
  257
- Interrupt Vector Summary
  257
20 SPI - Serial Peripheral Interface

258
- Features
  258
- Overview
  258
- Master Mode
  259
- Slave Mode
  259
- Data Modes
  259
- DMA Support
  260
- Register Description
  261
- Register Summary
  263
- Interrupt Vector Summary
  263
21 Usart

264
- Features
  264
- Overview
  264
- Clock Generation
  265
- Frame Formats
  269
- USART Initialization
  270
- Data Transmission - the USART Transmitter
  270
- Data Reception - the USART Receiver
  270
- Asynchronous Data Reception
  271
- Fractional Baud Rate Generation
  274
- USART in Master SPI Mode
  276
- USART SPI Vs. SPI
  276
- Multiprocessor Communication Mode
  277
- IRCOM Mode of Operation
  278
- DMA Support
  278
- Register Description
  279
- Register Summary
  284
- Interrupt Vector Summary
  284
22 IRCOM - IR Communication Module

285
- Features
  285
- Overview
  285
- Registers Description
  287
- Register Summary
  288
23 AES and des Crypto Engines

289
- Features
  289
- Overview
  289
- DES Instruction
  289
- AES Crypto Module
  290
- Register Description - AES
  293
- Register Summary - AES
  296
- Interrupt Vector Summary
  296
24 CRC - Cyclic Redundancy Check Generator

297
- Features
  297
- Overview
  297
- Operation
  298
- CRC on Flash Memory
  298
- CRC on DMA Data
  298
- CRC Using the I/O Interface
  299
- Register Description
  300
- Register Summary
  302
25 LCD - Liquid Crystal Display

303
- Features
  303
- Overview
  303
- Block Diagram
  305
- Mode of Operation
  306
- Register Description - LCD
  312
- Register Summary - LCD
  324
- Interrupt Vector Summary
  324
26 ADC - Analog-To-Digital Converter

325
- Features
  325
- Overview
  325
- Input Sources
  326
- Sampling Time Control
  329
- Voltage Reference Selection
  329
- Conversion Result
  330
- Compare Function
  331
- Starting a Conversion
  331
- ADC Clock and Conversion Timing
  331
- ADC Input Model
  334
- DMA Transfer
  335
- Interrupts and Events
  335
- Calibration
  335
- Synchronous Sampling
  335
- Register Description - ADC
  336
- Register Description - ADC Channel
  342
- Register Summary - ADC
  349
- Register Summary - ADC Channel
  349
- Interrupt Vector Summary
  349
27 AC - Analog Comparator

350
- Features
  350
- Overview
  350
- Input Sources
  351
- Signal Compare
  351
- Interrupts and Events
  351
- Window Mode
  352
- Input Hysteresis
  352
- Register Description
  353
- Register Summary
  358
- Interrupt Vector Summary
  358
28 IEEE 1149.1 JTAG Boundary Scan Interface

359
- Features
  359
- Overview
  359
- TAP - Test Access Port
  359
- JTAG Instructions
  361
- Boundary Scan Chain
  362
- Data Registers
  363
29 Program and Debug Interface

366
- Features
  366
- Overview
  366
- PDI Physical
  367
- PDI Controller
  371
- Register Description - PDI Instruction and Addressing Registers
  373
- Register Description - PDI Control and Status Registers
  375
- Register Summary
  376
30 Memory Programming

377
- Features
  377
- Overview
  377
- NVM Controller
  377
- NVM Commands
  378
- NVM Controller Busy Status
  378
- Flash and EEPROM
  379
- Flash and EEPROM Programming Sequences
  379
- Protection of NVM
  380
- Preventing NVM Corruption
  380
- CRC Functionality
  381
- Self-Programming and Boot Loader Support
  381
- External Programming
  390
- Register Description
  395
- Register Summary
  395
31 Peripheral Module Address Map

396
32 Instruction Set Summary

397
33 Datasheet Revision History

402

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Atmel XMEGA B Manuals

Atmel XMEGA B User Manual (415 pages)

Table of Contents

1 About the Manual

2 Overview

3 Atmel AVR CPU

4 Memories

5 DMAC - Direct Memory Access Controller

6 Event System

7 System Clock and Clock Options

8 Power Management and Sleep Modes

9 Reset System

10 WDT - Watchdog Timer

11 Interrupts and Programmable Multilevel Interrupt Controller

12 I/O Ports

13 TC0/1 - 16-Bit Timer/Counter Type 0 and 1

14 TC2 - 16-Bit Timer/Counter Type 2

15 Awex - Advanced Waveform Extension

16 Hi-Res - High-Resolution Extension

17 RTC - Real-Time Counter

18 USB - Universal Serial Bus Interface

19 TWI - Two-Wire Interface

20 SPI - Serial Peripheral Interface

21 Usart

22 IRCOM - IR Communication Module

23 AES and des Crypto Engines

24 CRC - Cyclic Redundancy Check Generator

25 LCD - Liquid Crystal Display

26 ADC - Analog-To-Digital Converter

27 AC - Analog Comparator

28 IEEE 1149.1 JTAG Boundary Scan Interface

29 Program and Debug Interface

30 Memory Programming

31 Peripheral Module Address Map

32 Instruction Set Summary

33 Datasheet Revision History

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