参数资料
型号: ST72511R6T1/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, TQFP-64
文件页数: 157/164页
文件大小: 1043K
代理商: ST72511R6T1/XXX
ST72311R, ST72511R, ST72512R, ST72532R
92/164
10.6 SERIAL COMMUNICATIONS INTERFACE (SCI)
10.6.1 Introduction
The Serial Communications Interface (SCI) offers
a flexible means of full-duplex data exchange with
external equipment requiring an industry standard
NRZ asynchronous serial data format. The SCI of-
fers a very wide range of baud rates using two
baud rate generator systems.
10.6.2 Main Features
s
Full duplex, asynchronous communications
s
NRZ standard format (Mark/Space)
s
Dual baud rate generator systems
s
Independently
programmable
transmit
and
receive baud rates up to 250K baud.
s
Programmable data word length (8 or 9 bits)
s
Receive buffer full, Transmit buffer empty and
End of Transmission flags
s
Two receiver wake-up modes:
– Address bit (MSB)
– Idle line
s
Muting function for multiprocessor configurations
s
Separate
enable bits for Transmitter and
Receiver
s
Three error detection flags:
– Overrun error
– Noise error
– Frame error
s
Five interrupt sources with flags:
– Transmit data register empty
– Transmission complete
– Receive data register full
– Idle line received
– Overrun error detected
10.6.3 General Description
The interface is externally connected to another
device by two pins (see Figure 53):
– TDO: Transmit Data Output. When the transmit-
ter is disabled, the output pin returns to its I/O
port configuration. When the transmitter is ena-
bled and nothing is to be transmitted, the TDO
pin is at high level.
– RDI: Receive Data Input is the serial data input.
Oversampling techniques are used for data re-
covery by discriminating between valid incoming
data and noise.
Through this pins, serial data is transmitted and re-
ceived as frames comprising:
– An Idle Line prior to transmission or reception
– A start bit
– A data word (8 or 9 bits) least significant bit first
– A Stop bit indicating that the frame is complete.
This interface usestwo types of baud rate generator:
– A conventional type for commonly-used baud
rates,
– An extended type with a prescaler offering a very
wide range of baud rates even with non-standard
oscillator frequencies.
相关PDF资料
PDF描述
ST72T511R7T1 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72T631L4M1 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO34
SAB80C537-M 8-BIT, 12 MHz, MICROCONTROLLER, PQFP100
SAF-C504-2R40M 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP44
SAB-C517A-4R24M 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP100
相关代理商/技术参数
参数描述
ST72561K4 制造商:STMicroelectronics 功能描述:LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS,FLASH MEMORY, - Bulk
ST72589-EMU2 功能描述:仿真器/模拟器 ST7 Emulator Board RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
ST72611F1 制造商:STMicroelectronics 功能描述:LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS,FLASH MEMORY, - Bulk
ST7263-EMU2 功能描述:仿真器/模拟器 ST7 Emulator Board RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
ST7265X-EVAL/MS 制造商:STMicroelectronics 功能描述:ST6 EVAL BD - Bulk