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Microchip ATmega4809 Manuals
Manuals and User Guides for Microchip ATmega4809. We have
1
Microchip ATmega4809 manual available for free PDF download: Manual
Microchip Technology ATmega4809 Manual (483 pages)
Brand:
Microchip Technology
| Category:
Microcontrollers
| Size: 2 MB
Table of Contents
Introduction
1
Features
1
Table of Contents
3
1 Block Diagram
8
2 Megaavr ® 0-Series Overview
9
Memory Overview
9
Peripheral Overview
10
3 Conventions
11
Numerical Notation
11
Memory Size and Type
11
Frequency and Time
11
Registers and Bits
12
4 Acronyms and Abbreviations
14
5 Memories
17
Overview
17
Memory Map
17
In-System Reprogrammable Flash Program Memory
18
SRAM Data Memory
19
EEPROM Data Memory
19
User Row (USERROW)
19
Signature Row (SIGROW)
20
Fuses (FUSE)
28
Memory Section Access from CPU and UPDI on Locked Device
38
I/O Memory
39
6 Peripherals and Architecture
43
Peripheral Module Address Map
43
Interrupt Vector Mapping
45
System Configuration (SYSCFG)
47
7 Avr Cpu
50
Features
50
Overview
50
Architecture
50
Arithmetic Logic Unit (ALU)
52
Functional Description
52
Register Summary - CPU
57
Register Description
57
8 Nonvolatile Memory Controller (NVMCTRL)
62
Features
62
Overview
62
Functional Description
63
Register Summary - NVMCTRL
69
Register Description
69
9 Clock Controller (CLKCTRL)
77
Features
77
Overview
77
Functional Description
79
Register Summary - CLKCTRL
83
Register Description
83
10 Sleep Controller (SLPCTRL)
93
Features
93
Overview
93
Functional Description
94
Register Summary - SLPCTRL
97
Register Description
97
11 Reset Controller (RSTCTRL)
99
Features
99
Overview
99
Functional Description
100
Register Summary - RSTCTRL
102
Register Description
102
12 CPU Interrupt Controller (CPUINT)
105
Features
105
Overview
105
Functional Description
106
Register Summary - CPUINT
112
Register Description
112
13 Event System (EVSYS)
117
Features
117
Overview
117
Functional Description
119
Register Summary - EVSYS
123
Register Description
123
14 Port Multiplexer (PORTMUX)
129
Overview
129
Register Summary - PORTMUX
130
Register Description
130
15 I/O Pin Configuration (PORT)
137
Features
137
Overview
137
Functional Description
138
Register Summary - Portx
142
Register Description - Ports
142
Register Summary - Vportx
155
Register Description - Virtual Ports
155
16 Brown-Out Detector (BOD)
160
Features
160
Overview
160
Functional Description
161
Register Summary - BOD
163
Register Description
163
17 Voltage Reference (VREF)
170
Features
170
Overview
170
Functional Description
170
Register Summary - VREF
172
Register Description
172
18 Watchdog Timer (WDT)
175
Features
175
Overview
175
Functional Description
176
Register Summary - WDT
180
Register Description
180
19 Bit Timer/Counter Type a (TCA)
184
Features
184
Overview
184
Functional Description
187
Sleep Mode Operation
196
Register Summary - Tcan in Normal Mode (SPLITM in Tcan.ctrld=0)
197
Register Description - Normal Mode
198
Register Summary - Tcan in Split Mode (SPLITM in Tcan.ctrld=1)
218
Register Description - Split Mode
218
20 Bit Timer/Counter Type B (TCB)
234
Features
234
Overview
234
Functional Description
235
Register Summary - TCB
243
Register Description
243
21 Real-Time Counter (RTC)
255
Features
255
Overview
255
Clocks
256
RTC Functional Description
256
PIT Functional Description
257
Crystal Error Correction
259
Events
260
Interrupts
260
Sleep Mode Operation
261
21.10 Synchronization
261
Register Summary - RTC
262
21.12 Register Description
262
22 Universal Synchronous and Asynchronous Receiver and Transmitter (USART)
280
Features
280
Overview
280
Functional Description
283
Register Summary - Usartn
298
Register Description
298
23 Serial Peripheral Interface (SPI)
317
Features
317
Overview
317
Functional Description
319
Register Summary - Spin
327
Register Description
327
24 Two-Wire Interface (TWI)
334
Features
334
Overview
334
Functional Description
335
Register Summary - Twin
349
Register Description
349
25 Cyclic Redundancy Check Memory Scan (CRCSCAN)
370
Features
370
Overview
370
Functional Description
371
Register Summary - CRCSCAN
374
Register Description
374
250 CCL - Configurable Custom Logic
378
Features
378
Overview
378
Functional Description
380
Register Summary - CCL
388
Register Description
388
27 Analog Comparator (AC)
399
Features
399
Overview
399
Functional Description
400
Register Summary - AC
403
Register Description
403
28 Analog-To-Digital Converter (ADC)
410
Features
410
Overview
410
Functional Description
413
Register Summary - Adcn
421
Register Description
421
29 Unified Program and Debug Interface (UPDI)
439
Features
439
Overview
439
Functional Description
441
Register Summary - UPDI
461
Register Description
461
30 Instruction Set Summary
472
31 Data Sheet Revision History
479
The Microchip Web Site
480
Customer Change Notification Service
480
Customer Support
480
Product Identification System
481
Microchip Devices Code Protection Feature
481
Legal Notice
481
Trademarks
482
Quality Management System Certified by DNV
482
Worldwide Sales and Service
483
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