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Файл:interfeysy_1 / ИДЗ_машинка / даташиты / esp32_technical_reference_manual_en.pdf
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- •1 System and Memory
- •1.1 Introduction
- •1.2 Features
- •1.3 Functional Description
- •1.3.1 Address Mapping
- •1.3.2 Embedded Memory
- •1.3.3 External Memory
- •1.3.5 Peripherals
- •2 Interrupt Matrix (INTERRUPT)
- •2.1 Overview
- •2.2 Features
- •2.3 Functional Description
- •2.3.1 Peripheral Interrupt Source
- •2.3.2 CPU Interrupt
- •2.3.3 Allocate Peripheral Interrupt Sources to Peripheral Interrupt on CPU
- •2.3.4 CPU NMI Interrupt Mask
- •2.3.5 Query Current Interrupt Status of Peripheral Interrupt Source
- •2.4 Registers
- •3 Reset and Clock
- •3.1 System Reset
- •3.1.1 Introduction
- •3.1.2 Reset Source
- •3.2 System Clock
- •3.2.1 Introduction
- •3.2.3 CPU Clock
- •3.2.4 Peripheral Clock
- •3.2.7 Audio PLL
- •3.3 Register Summary
- •3.4 Registers
- •4.1 Overview
- •4.2 Peripheral Input via GPIO Matrix
- •4.2.1 Summary
- •4.2.2 Functional Description
- •4.2.3 Simple GPIO Input
- •4.3 Peripheral Output via GPIO Matrix
- •4.3.1 Summary
- •4.3.3 Simple GPIO Output
- •4.4 Direct I/O via IO_MUX
- •4.4.1 Summary
- •4.4.2 Functional Description
- •4.5 RTC IO_MUX for Low Power and Analog I/O
- •4.5.1 Summary
- •4.5.2 Analog Function Description
- •4.7 Pad Hold Feature
- •4.8 I/O Pad Power Supplies
- •4.8.1 VDD_SDIO Power Domain
- •4.9 Peripheral Signal List
- •4.10 IO_MUX Pad List
- •4.11 RTC_MUX Pin List
- •4.12 Register Summary
- •4.12.1 GPIO Matrix Register Summary
- •4.12.2 IO MUX Register Summary
- •4.12.3 RTC IO MUX Register Summary
- •4.13 Registers
- •4.13.1 GPIO Matrix Registers
- •4.13.2 IO MUX Registers
- •4.13.3 RTC IO MUX Registers
- •5 DPort Registers
- •5.1 Introduction
- •5.2 Features
- •5.3 Functional Description
- •5.3.1 System and Memory Register
- •5.3.2 Reset and Clock Registers
- •5.3.3 Interrupt Matrix Register
- •5.3.4 DMA Registers
- •5.3.5 MPU/MMU Registers
- •5.3.7 Peripheral Clock Gating and Reset
- •5.4 Register Summary
- •5.5 Registers
- •6 DMA Controller (DMA)
- •6.1 Overview
- •6.2 Features
- •6.3 Functional Description
- •6.3.1 DMA Engine Architecture
- •6.3.2 Linked List
- •6.4 UART DMA (UDMA)
- •7 SPI Controller (SPI)
- •7.1 Overview
- •7.5 Parallel QSPI
- •7.5.1 Communication Format of Parallel QSPI
- •7.6.1 SPI Interrupts
- •7.6.2 DMA Interrupts
- •7.7 Register Summary
- •7.8 Registers
- •8 SDIO Slave Controller
- •8.1 Overview
- •8.2 Features
- •8.3 Functional Description
- •8.3.1 SDIO Slave Block Diagram
- •8.3.3 Register Access
- •8.3.6 SDIO Bus Timing
- •8.3.7 Interrupt
- •8.4 Register Summary
- •8.5 SLC Registers
- •8.6 SLC Host Registers
- •8.7 HINF Registers
- •9 SD/MMC Host Controller
- •9.1 Overview
- •9.2 Features
- •9.3 SD/MMC External Interface Signals
- •9.4 Functional Description
- •9.4.1 SD/MMC Host Controller Architecture
- •9.4.2 Command Path
- •9.4.3 Data Path
- •9.5 Software Restrictions for Proper CIU Operation
- •9.6 RAM for Receiving and Sending Data
- •9.6.1 Transmit RAM Module
- •9.6.2 Receive RAM Module
- •9.8 The Structure of a Linked List
- •9.9 Initialization
- •9.9.1 DMAC Initialization
- •9.9.2 DMAC Transmission Initialization
- •9.9.3 DMAC Reception Initialization
- •9.11 Interrupt
- •9.12 Register Summary
- •9.13 Registers
- •10 Ethernet Media Access Controller (MAC)
- •10.1 Overview
- •10.2 EMAC_CORE
- •10.2.1 Transmit Operation
- •10.2.2 Receive Operation
- •10.3 MAC Interrupt Controller
- •10.4 MAC Address Filtering
- •10.4.1 Unicast Destination Address Filtering
- •10.4.2 Multicast Destination Address Filtering
- •10.4.3 Broadcast Address Filtering
- •10.4.4 Unicast Source Address Filtering
- •10.4.5 Inverse Filtering Operation
- •10.4.6 Good Transmitted Frames and Received Frames
- •10.5 EMAC_MTL (MAC Transaction Layer)
- •10.6 PHY Interface
- •10.6.1 MII (Media Independent Interface)
- •10.6.3 Station Management Agent (SMA) Interface
- •10.6.4 RMII Timing
- •10.7 Ethernet DMA Features
- •10.8 Linked List Descriptors
- •10.8.1 Transmit Descriptors
- •10.8.2 Receive Descriptors
- •10.9 Register Summary
- •10.10 Registers
- •11 I2C Controller (I2C)
- •11.1 Overview
- •11.2 Features
- •11.3 Functional Description
- •11.3.1 Introduction
- •11.3.2 Architecture
- •11.3.3 I2C Bus Timing
- •11.3.7 Interrupts
- •11.4 Register Summary
- •11.5 Registers
- •12 I2S Controller (I2S)
- •12.1 Overview
- •12.2 Features
- •12.3 The Clock of I2S Module
- •12.4 I2S Mode
- •12.4.1 Supported Audio Standards
- •12.4.2 Module Reset
- •12.4.3 FIFO Operation
- •12.4.5 Receiving Data
- •12.5.1 LCD Master Transmitting Mode
- •12.5.2 Camera Slave Receiving Mode
- •12.5.3 ADC/DAC mode
- •12.6 I2S Interrupts
- •12.6.1 FIFO Interrupts
- •12.6.2 DMA Interrupts
- •12.7 Register Summary
- •12.8 Registers
- •13 UART Controller (UART)
- •13.1 Overview
- •13.2 UART Features
- •13.3 Functional Description
- •13.3.1 Introduction
- •13.3.3 UART RAM
- •13.3.5 UART Data Frame
- •13.3.7 Flow Control
- •13.3.8 UART DMA
- •13.3.9 UART Interrupts
- •13.3.10 UHCI Interrupts
- •13.4 Register Summary
- •13.4.1 UART Register Summary
- •13.5 Registers
- •13.5.1 UART Registers
- •13.5.2 UHCI Registers
- •14 LED PWM Controller (LEDC)
- •14.1 Introduction
- •14.2 Functional Description
- •14.2.1 Architecture
- •14.2.3 Channels
- •14.2.4 Interrupts
- •14.3 Register Summary
- •14.4 Registers
- •15 Remote Control Peripheral (RMT)
- •15.1 Introduction
- •15.2 Functional Description
- •15.2.1 RMT Architecture
- •15.2.3 Clock
- •15.2.4 Transmitter
- •15.2.5 Receiver
- •15.2.6 Interrupts
- •15.3 Register Summary
- •15.4 Registers
- •16 Motor Control PWM (PWM)
- •16.1 Introduction
- •16.2 Features
- •16.3 Submodules
- •16.3.1 Overview
- •16.3.2 PWM Timer Submodule
- •16.3.3 PWM Operator Submodule
- •16.3.4 Capture Submodule
- •16.4 Register Summary
- •16.5 Registers
- •17 Pulse Count Controller (PCNT)
- •17.1 Overview
- •17.2 Functional Description
- •17.2.1 Architecture
- •17.2.2 Counter Channel Inputs
- •17.2.3 Watchpoints
- •17.2.4 Examples
- •17.2.5 Interrupts
- •18 Timer Group (TIMG)
- •18.1 Introduction
- •18.2 Functional Description
- •18.2.2 64-bit Time-base Counter
- •18.2.3 Alarm Generation
- •18.2.4 MWDT
- •18.2.5 Interrupts
- •18.3 Register Summary
- •18.4 Registers
- •19 Watchdog Timers (WDT)
- •19.1 Introduction
- •19.2 Features
- •19.3 Functional Description
- •19.3.1 Clock
- •20 eFuse Controller
- •20.1 Introduction
- •20.2 Features
- •20.3 Functional Description
- •20.3.1 Structure
- •20.3.3 Software Reading of System Parameters
- •20.3.4 The Use of System Parameters by Hardware Modules
- •20.3.5 Interrupts
- •20.4 Register Summary
- •20.5 Registers
- •21 Two-wire Automotive Interface (TWAI)
- •21.1 Overview
- •21.2 Features
- •21.3 Functional Protocol
- •21.3.1 TWAI Properties
- •21.3.2 TWAI Messages
- •21.3.3 TWAI Errors
- •21.3.4 TWAI Bit Timing
- •21.4 Architectural Overview
- •21.4.1 Registers Block
- •21.4.2 Bit Stream Processor
- •21.4.3 Error Management Logic
- •21.4.4 Bit Timing Logic
- •21.4.5 Acceptance Filter
- •21.5 Functional Description
- •21.5.1 Modes
- •21.5.2 Bit Timing
- •21.5.3 Interrupt Management
- •21.5.4 Transmit and Receive Buffers
- •21.5.5 Receive FIFO and Data Overruns
- •21.5.6 Acceptance Filter
- •21.5.8 Error Code Capture
- •21.5.9 Arbitration Lost Capture
- •21.6 Register Summary
- •21.7 Registers
- •22 AES Accelerator (AES)
- •22.1 Introduction
- •22.2 Features
- •22.3 Functional Description
- •22.3.1 AES Algorithm Operations
- •22.3.2 Key, Plaintext and Ciphertext
- •22.3.3 Endianness
- •22.3.4 Encryption and Decryption Operations
- •22.3.5 Speed
- •22.4 Register Summary
- •22.5 Registers
- •23 SHA Accelerator (SHA)
- •23.1 Introduction
- •23.2 Features
- •23.3 Functional Description
- •23.3.1 Padding and Parsing the Message
- •23.3.2 Message Digest
- •23.3.3 Hash Operation
- •23.3.4 Speed
- •23.4 Register Summary
- •23.5 Registers
- •24 RSA Accelerator (RSA)
- •24.1 Introduction
- •24.2 Features
- •24.3 Functional Description
- •24.3.1 Initialization
- •24.3.2 Large Number Modular Exponentiation
- •24.3.4 Large Number Multiplication
- •24.4 Register Summary
- •24.5 Registers
- •25 Random Number Generator (RNG)
- •25.1 Introduction
- •25.2 Feature
- •25.3 Functional Description
- •25.5 Register Summary
- •25.6 Register
- •26 External Memory Encryption and Decryption (FLASH)
- •26.1 Overview
- •26.2 Features
- •26.3 Functional Description
- •26.3.1 Key Generator
- •26.3.2 Flash Encryption Block
- •26.3.3 Flash Decryption Block
- •26.4 Register Summary
- •26.5 Register
- •27 Memory Management and Protection Units (MMU, MPU)
- •27.1 Introduction
- •27.2 Features
- •27.3 Functional Description
- •27.3.1 PID Controller
- •28 Process ID Controller (PID)
- •28.1 Overview
- •28.2 Features
- •28.3 Functional Description
- •28.3.1 Interrupt Identification
- •28.3.2 Information Recording
- •28.3.3 Proactive Process Switching
- •28.4 Register Summary
- •28.5 Registers
- •29 On-Chip Sensors and Analog Signal Processing
- •29.1 Introduction
- •29.2 Capacitive Touch Sensor
- •29.2.1 Introduction
- •29.2.2 Features
- •29.2.3 Available GPIOs
- •29.2.4 Functional Description
- •29.2.5 Touch FSM
- •29.3.1 Introduction
- •29.3.2 Features
- •29.3.3 Outline of Function
- •29.3.4 RTC SAR ADC Controllers
- •29.3.5 DIG SAR ADC Controllers
- •29.4.1 Introduction
- •29.4.2 Features
- •29.4.4 Cosine Waveform Generator
- •29.5 Register Summary
- •29.5.1 Sensors
- •29.5.2 Advanced Peripheral Bus
- •29.6 Registers
- •29.6.1 Sensors
- •29.6.2 Advanced Peripheral Bus
- •30 ULP Coprocessor (ULP)
- •30.1 Introduction
- •30.2 Features
- •30.4 Instruction Set
- •30.4.2 ST – Store Data in Memory
- •30.4.3 LD – Load Data from Memory
- •30.4.4 JUMP – Jump to an Absolute Address
- •30.4.5 JUMPR – Jump to a Relative Offset (Conditional upon R0)
- •30.4.7 HALT – End the Program
- •30.4.8 WAKE – Wake up the Chip
- •30.4.10 WAIT – Wait for a Number of Cycles
- •30.4.12 I2C_RD/I2C_WR – Read/Write I²C
- •30.4.13 REG_RD – Read from Peripheral Register
- •30.5 ULP Program Execution
- •30.6 RTC_I2C Controller
- •30.6.1 Configuring RTC_I2C
- •30.6.2 Using RTC_I2C
- •30.7 Register Summary
- •30.7.1 SENS_ULP Address Space
- •30.7.2 RTC_I2C Address Space
- •30.8 Registers
- •30.8.1 SENS_ULP Address Space
- •30.8.2 RTC_I2C Address Space
- •31 Low-Power Management (RTC_CNTL)
- •31.1 Introduction
- •31.2 Features
- •31.3 Functional Description
- •31.3.2 Digital Core Voltage Regulator
- •31.3.4 Flash Voltage Regulator
- •31.3.5 Brownout Detector
- •31.3.6 RTC Module
- •31.3.9 Predefined Power Modes
- •31.3.10 Wakeup Source
- •31.3.12 RTC Timer
- •31.3.13 RTC Boot
- •31.4 Register Summary
- •31.5 Registers
- •Glossary
- •Abbreviations for Peripherals
- •Abbreviations for Registers
- •Revision History
Glossary
Glossary
Abbreviations for Peripherals
AES |
AES Accelerator |
AHB |
Advanced High-performance Bus. For more information, please refer to its |
|
specification. |
APB |
Advanced Peripheral Bus. For more information, please refer to its specification. |
DMA |
DMA Controller |
DPORT |
Short for Data Port. The full name is Xtensa Local Memory Interface (XLMI) Port. |
eFuse |
eFuse Controller |
EMAC |
Ethernet MAC |
I2C |
I2C Controller |
I2S |
I2S Controller |
LEDC |
LED_PWM Controller |
MCPWM |
Motor Control PWM |
MMU |
Memory Management Unit |
MPU |
Memory Protection Unit |
PCNT |
Pulse Count Controller |
PERI |
Peripheral |
PID |
Process Identifier |
PMU |
Power Management Unit |
RMT |
Remote Control Peripheral |
RNG |
Random Number Generator |
RSA |
RSA Accelerator |
RTC |
Real Time Controller. A group of circuits in SoC that keeps working in any chip |
|
mode and at any time. |
SDMMC |
SD/MMC Host Controller |
SHA |
SHA Accelerator |
SPI |
SPI Controller |
TIMG |
Timer Group |
UART |
UART Controller |
ULP Coprocessor |
Ultra-low-power Coprocessor |
WDT |
Watchdog Timers |
Abbreviations for Registers
ISO |
Isolation. When a module is power down, its output pins will be stuck in unknown |
|
|
state (some middle voltage). ”ISO” registers will control to isolate its output pins |
|
|
to be a determined value, so it will not affect the status of other working modules |
|
|
which are not power down. |
|
NMI |
Non-maskable interrupt. |
|
REG |
Register. |
|
R/W |
Read/write. Software can read and write to these bits. |
|
RO |
Read-only. Software can only read these bits. |
|
WO |
Write-only. Software can only write to these bits. |
|
Espressif Systems |
721 |
ESP32 TRM (Version 5.0) |
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