参数资料
型号: MC68HCL05C9AFB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 129/160页
文件大小: 4128K
代理商: MC68HCL05C9AFB
NON-DISCLOSURE
AGREEMENT
REQUIRED
Serial Communications Interface (SCI)
General Release Specification
MC68HC05C9A Rev. 4.0
Serial Communications Interface (SCI)
9.2 Introduction
This section describes the on-chip asynchronous serial communications
interface (SCI). The SCI allows full-duplex, asynchronous, RS232 or
RS422 serial communication between the MCU and remote devices,
including other MCUs. The transmitter and receiver of the SCI operate
independently, although they use the same baud rate generator.
9.3 Features
Features of the SCI include:
Standard Mark/Space Non-Return-to-Zero Format
Full Duplex Operation
32 Programmable Baud Rates
Programmable 8-Bit or 9-Bit Character Length
Separately Enabled Transmitter and Receiver
Two Receiver Wakeup Methods:
Idle Line Wakeup
Address Mark Wakeup
Interrupt-Driven Operation Capability with Five Interrupt Flags:
Transmitter Data Register Empty
Transmission Complete
Transmission Data Register Full
Receiver Overrun
Receiver Framing Error Detection
1/16 Bit-Time Noise Detection
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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