I2C通讯协议(英文原版)I2C_Spec_en

I2C通讯协议(英文原版)I2C_Spec_enTHE I2C-BUS SPECIFICATION VERSION 2.1 JANUARY 2000

document order number: 9398 393 40011

Philips Semiconductors

The I2C-bus specification
CONTENTS 1 1.1 1.2 1.3 1.4 2 2.1 2.2 3 4 5 6 6.1 6.2 7 7.1 7.2 8 8.1 8.2 8.3 9 10 10.1 10.1.1 10.1.2 10.1.3 11 12 13 13.1 13.2 13.3 PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Version 1.0 - 1992. . . . . . . . . . . . . . . . . . . . Version 2.0 - 198. . . . . . . . . . . . . . . . . . . . . Version 2.1 - 1999. . . . . . . . . . . . . . . . . . . . Purchase of Philips I2C-bus components . . 3 3 3 3 13.5.1 13.5.2 13.5.3 14 14.1 14.2 14.3 15 13.4 13.5 Hs-mode devices at lower speed modes . . 24 Mixed speed modes on one serial bus system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 F/S-mode transfer in a mixed-speed bus