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AT90PWM3B-16SU 参数 Datasheet PDF下载

AT90PWM3B-16SU图片预览
型号: AT90PWM3B-16SU
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器具有8K字节的系统内可编程闪存 [8-bit Microcontroller with 8K Bytes In-System Programmable Flash]
分类和应用: 闪存微控制器
文件页数/大小: 361 页 / 6022 K
品牌: ATMEL [ ATMEL ]
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AT90PWM2/3/2B/3B  
18. USART  
The Universal Synchronous and Asynchronous serial Receiver and Transmitter (USART) is a  
highly flexible serial communication device. The main features are:  
18.1 Features  
Full Duplex Operation (Independent Serial Receive and Transmit Registers)  
Asynchronous or Synchronous Operation  
Master or Slave Clocked Synchronous Operation  
High Resolution Baud Rate Generator  
Supports Serial Frames with 5, 6, 7, 8, or 9 Data Bits and 1 or 2 Stop Bits  
Odd or Even Parity Generation and Parity Check Supported by Hardware  
Data OverRun Detection  
Framing Error Detection  
Noise Filtering Includes False Start Bit Detection and Digital Low Pass Filter  
Three Separate Interrupts on TX Complete, TX Data Register Empty and RX Complete  
Multi-processor Communication Mode  
Double Speed Asynchronous Communication Mode  
USART Extended mode (EUSART) with:  
– Independant bit number configuration for transmit and receive  
– Supports Serial Frames with 5, 6, 7, 8, 9 or 13, 14, 15, 16, 17 Data Bits and 1 or 2 Stop Bits  
– Biphase Manchester encode/decoder (for DALI Communications)  
– Manchester framing error detection  
– Bit ordering configuration (MSB or LSB first)  
– Sleep mode exit under reception of EUSART frame  
18.2 Overview  
A simplified block diagram of the USART Transmitter is shown in Figure 18-1. CPU accessible  
I/O Registers and I/O pins are shown in bold.  
183  
4317J–AVR–08/10  
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