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tinyAVR® 1-series ATtiny1614/1616/1617 Automotive
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34
Unified Program and Debug Interface (UPDI)
34.3
Functional Description
ATtiny1614/1616/1617 Automotive
Introduction
Features
1
Silicon Errata and Data Sheet Clarification Document
2
tinyAVR® 1-series Overview
3
Block Diagram
4
Pinout
5
I/O Multiplexing and Considerations
6
Automotive Quality Grade
7
Memories
8
Peripherals and Architecture
9
AVR CPU
10
Nonvolatile Memory Controller (NVMCTRL)
11
Clock Controller (CLKCTRL)
12
Sleep Controller (SLPCTRL)
13
Reset Controller (RSTCTRL)
14
CPU Interrupt Controller (CPUINT)
15
Event System (EVSYS)
16
Port Multiplexer (PORTMUX)
17
I/O Pin Configuration (PORT)
18
Brown-Out Detector (BOD)
19
Voltage Reference (VREF)
20
Watchdog Timer (WDT)
21
16-bit Timer/Counter Type A (TCA)
22
16-bit Timer/Counter Type B (TCB)
23
12-Bit Timer/Counter Type D (TCD)
24
Real-Time Counter (RTC)
25
Universal Synchronous and Asynchronous Receiver and Transmitter (USART)
26
Serial Peripheral Interface (SPI)
27
Two-Wire Interface (TWI)
28
Cyclic Redundancy Check Memory Scan (CRCSCAN)
29
Configurable Custom Logic (CCL)
30
Analog Comparator (AC)
31
Analog-to-Digital Converter (ADC)
32
Digital-to-Analog Converter (DAC)
33
Peripheral Touch Controller (PTC)
34
Unified Program and Debug Interface (UPDI)
34.1
Features
34.2
Overview
34.3
Functional Description
34.3.1
Principle of Operation
34.3.2
Operation
34.3.3
UPDI Instruction Set
34.3.4
System Clock Measurement with UPDI
34.3.5
Interbyte Delay
34.3.6
System Information Block
34.3.7
Enabling of KEY Protected Interfaces
34.3.8
Events
34.3.9
Sleep Mode Operation
34.4
Register Summary - UPDI
34.5
Register Description
35
Instruction Set Summary
36
Conventions
37
Acronyms and Abbreviations
38
Electrical Characteristics
39
Typical Characteristics
40
Ordering Information
41
Package Drawings
42
Thermal Considerations
43
Errata
44
Data Sheet Revision History
The Microchip Website
Product Change Notification Service
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Microchip Devices Code Protection Feature
Legal Notice
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Quality Management System
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34.3 Functional Description
