參數(shù)資料
型號: MC68HC705C9AVFNE
廠商: Freescale Semiconductor
文件頁數(shù): 74/118頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 352 BYTES RAM 44-PLC
標準包裝: 26
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 2.1MHz
連通性: SCI,SPI
外圍設備: POR,WDT
輸入/輸出數(shù): 24
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: OTP
RAM 容量: 352 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
59
Chapter 9
Serial Communications Interface (SCI)
9.1 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.
9.2 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
Idle receiver input
Receiver framing error detection
1/16 bit-time noise detection
9.3 SCI Receiver Features
Features of the SCI receiver include:
Receiver wakeup function (idle line or address bit)
Idle line detection
Framing error detection
Noise detection
Overrun detection
Receiver data register full flag
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