参数资料
型号: ST72T734J6B1
厂商: 意法半导体
元件分类: ADC
英文描述: 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
中文描述: 8位USB单片机的显示器,高达60K章检察官办公室,每1000内存,模数转换器,定时器,同步,材质单元,脉宽调制/的BRM,的H / W DDC的
文件页数: 131/144页
文件大小: 1280K
代理商: ST72T734J6B1
ST72774/ST727754/ST72734
87/144
4.7 IC SINGLE MASTER BUS INTERFACE (I2C)
4.7.1 Introduction
The I2C Bus Interface serves as an interface
between the microcontroller and the serial I2C bus.
It provides single master functions, and controls all
I2C bus-specific sequencing, protocol and timing.
It supports fast IC mode (400kHz).
4.7.2 Main Features
– Parallel bus /I2C protocol converter
– Interrupt generation
– Standard I2C mode /Fast I2C mode
– 7-bit Addressing
s
I2C single Master Mode
– End of byte transmission flag
– Transmitter/Receiver flag
– Clock generation
4.7.3 General Description
In addition to receiving and transmitting data, this
interface converts it from serial to parallel format
and vice versa, using either an interrupt or polled
handshake. The interrupts are enabled or disabled
by software. The interface is connected to the I2C
bus by a data pin (SDAI) and by a clock pin (SCLI).
It can be connected both with a standard I2C bus
and a Fast I2C bus. This selection is made by
software.
Mode Selection
The interface can operate in the two following
modes:
– Master transmitter/receiver
By default, it is idle.
The interface automatically switches from idle to
master after it generates a START condition and
from master to idle after it generates a STOP
condition.
Communication Flow
The
interface
initiates
a
data
transfer
and
generates the clock signal. A serial data transfer
always begins with a start condition and ends with
a stop condition. Both start and stop conditions are
generated by software.
Data and addresses are transferred as 8-bit bytes,
MSB first. The first byte following the start
condition is the address byte.
A 9th clock pulse follows the 8 clock cycles of a
byte transfer, during which the receiver must send
an acknowledge bit to the transmitter. Refer to
Figure 52.
Figure 52. I2C BUS Protocol
SCL
SDA
12
8
9
MSB
ACK
STOP
START
CONDITION
VR02119B
相关PDF资料
PDF描述
ST72T754J9B1 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
ST72T754S9T1 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
ST733C08LFK2 1900 A, 800 V, SCR, TO-200AC
ST733C08LFK1L 1900 A, 800 V, SCR, TO-200AC
ST733C04LEK1 1900 A, 400 V, SCR, TO-200AC
相关代理商/技术参数
参数描述
ST72T754J9B1 制造商:STMicroelectronics 功能描述:
ST72T774J9B1 制造商:STMicroelectronics 功能描述:
ST72T774S9T1 制造商:STMicroelectronics 功能描述:ST72T774S9T1 - Trays
ST730 制造商:IRF 制造商全称:International Rectifier 功能描述:PHASE CONTROL THYRISTORS Hockey Puk Version
ST7-30 制造商:SUPERWORLD 制造商全称:Superworld Electronics 功能描述:POWER TRANSFORMER