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參數(shù)資料
| 型號： | TS80C51RA2-LIJB |
| 廠商： | Atmel Corp. |
| 英文描述： | High Performance 8-bit Microcontrollers |
| 中文描述： | 高性能8位微控制器 |
| 文件頁數(shù)： | 34/74頁 |
| 文件大小： | 903K |
| 代理商： | TS80C51RA2-LIJB |
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34
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
6.6. TS80C51Rx2 Serial I/O Port
The serial I/O port in the TS80C51Rx2 is compatible with the serial I/O port in the 80C52.
It provides both synchronous and asynchronous communication modes. It operates as an Universal Asynchronous
Receiver and Transmitter (UART) in three full-duplex modes (Modes 1, 2 and 3). Asynchronous transmission and
reception can occur simultaneously and at different baud rates
Serial I/O port includes the following enhancements:
Framing error detection
Automatic address recognition
6.6.1. Framing Error Detection
Framing bit error detection is provided for the three asynchronous modes (modes 1, 2 and 3). To enable the framing
bit error detection feature, set SMOD0 bit in PCON register (See Figure 13).
Figure 13. Framing Error Block Diagram
When this feature is enabled, the receiver checks each incoming data frame for a valid stop bit. An invalid stop
bit may result from noise on the serial lines or from simultaneous transmission by two CPUs. If a valid stop bit
is not found, the Framing Error bit (FE) in SCON register (See Table 16.) bit is set.
RI
TI
RB8
TB8
REN
SM2
SM1
SM0/FE
IDL
PD
GF0
GF1
POF
-
SMOD0
SMOD1
To UART framing error control
SM0 to UART mode control (SMOD = 0)
Set FE bit if stop bit is 0 (framing error) (SMOD0 = 1)
SCON (98h)
PCON (87h)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS80C51RA2-LIJD | High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIJR | High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIKB | High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIKD | High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIKR | High Performance 8-bit Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS80C51RA2-LIJD | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIJR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIKB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIKD | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-LIKR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
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