- 您现在的位置：买卖IC网 > PDF目录98143 > ST52F514G3B6 (STMICROELECTRONICS) 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP28 PDF资料下载
参数资料
| 型号： | ST52F514G3B6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP28 |
| 封装： | PLASTIC, DIP-28 |
| 文件页数： | 92/106页 |
| 文件大小： | 1340K |
| 代理商： | ST52F514G3B6 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页当前第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页
14 I2C BUS INTERFACE (I2C)
14.1 Introduction
The I2C Bus Interface serves as an interface
between the microcontroller and the serial I2C bus,
providing both multimaster and slave functions and
controls all I2C bus-specific sequencing, protocol,
arbitration and timing. The
I2Bus Interface
supports fast I2C mode (400kHz).
14.2 Main Features
s
Parallel-bus/I2C protocol converter
s
Multi-master capability
s
7-bit/10-bit Addressing
s
Transmitter/Receiver flag
s
End-of-byte transmission flag
s
Transfer problem detection
I2C Master Features:
s
Clock generation
s
I2C bus busy flag
s
Arbitration Lost Flag
s
End of byte transmission flag
s
Transmitter/Receiver Flag
s
Start bit detection flag
s
Start and Stop generation
I2C Slave Features:
s
Stop bit detection
s
I2C bus busy flag
s
Detection of misplaced start or stop condition
s
Programmable I2C Address detection
s
Transfer problem detection
s
End-of-byte transmission flag
s
Transmitter/Receiver flag
Figure 14.1 I2C BUS Protocol
14.3 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
via software. The interface is connected to the I2C
bus by a data pin (SDA) and by a clock pin (SCL).
The interface can be connected both with a
standard I2C bus and a Fast I2C bus. This
selection is made via software.
14.3.1 Mode Selection.
The interface can operate in the following four
modes:
– Slave transmitter/receiver
– Master transmitter/receiver
By default, it operates in slave mode.
The interface automatically switches from slave to
master after it generates a START condition and
from master to slave in case of arbitration loss or a
STOP
generation,
providing
Multi-Master
capability.
14.3.2 Communication Flow.
In Master mode, Communication Flow initiates
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 in master mode
by software.
In Slave mode the interface is capable of
recognizing its own address (7 or 10-bit) and the
General Call address. The General Call address
detection may be enabled or disabled by software.
Data and addresses are transferred as 8-bit bytes,
(MSB first). The first byte(s) follow the start
condition is the address (one in 7-bit mode, two in
10-bit mode), which is always transmitted in
Master mode.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 14.1.
SCL
SDA
12
8
9
MSB
ACK
STOP
START
CONDITION
相关PDF资料 |
PDF描述 |
|---|---|
| ST52F513G3B6 | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP28 |
| ST52F513Y1B6 | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP16 |
| ST52F513Y2B6 | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP16 |
| ST52F510Y3B6 | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP16 |
| ST52F514Y2B6 | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST52F514G3M6 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| ST52F514GMB6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT INTELLIGENT CONTROLLER UNIT ICU Two Timer/PWMs, ADC, I2C, SPI, SCI |
| ST52F514GMM6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT INTELLIGENT CONTROLLER UNIT ICU Two Timer/PWMs, ADC, I2C, SPI, SCI |
| ST52F514Y0B6 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| ST52F514Y0M6 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
发布紧急采购，3分钟左右您将得到回复。