ESP8266 datasheet(4/117 Pages) ESPRESSIF

4 / 117 page

Table of Contents

1. Overview

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1.1. General Purpose Input/Output Interface (GPIO)

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1.2. Secure Digital Input/Output Interface (SDIO)

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1.3. Serial Peripheral Interface (SPI/HSPI)

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1.3.1. General SPI (Master/Slave)

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1.3.2. HSPI (Slave)

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1.4. I2C Interface

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1.5. I2S Interface

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1.6. Universal Asynchronous Receiver Transmitter (UART)

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1.7. Pulse-Width Modulation (PWM)

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1.8. IR Remote Control

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1.9. Sniﬀer

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2. GPIO

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2.1. Functional Overview

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2.2. Instruction on GPIO Registers

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2.2.1. GPIO Function Selection Register

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2.2.2. GPIO Output Registers

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2.2.3. GPIO Input Register

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2.2.4. GPIO Interrupt Registers

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2.2.5. GPIO16 Related APIs

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2.3. Parameter onﬁguration

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2.3.1. Parameter Conﬁguration for Scene 1

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2.3.2. Parameter Conﬁguration for Scene 2

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2.3.3. Parameter Conﬁguration for Scene 3

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2.3.4. Interrupt Function Processing Procedures

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2.3.5. Example of The Interrupt Function Processing Procedures

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3. SPI Compatibility Mode User Guide

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3.1. Functional Overview

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3.2. DEMO Solution

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3.2.1. Introduction

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3.2.2. ESP8266 Software Compiling and Downloading

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3.2.3. ESP8266 FLASH Software Downloading

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