參數(shù)資料
型號： MC68HC05C9AFBE
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封裝： PLASTIC, QFP-44
文件頁數(shù)： 134/160頁
文件大?。?/td> 4128K
代理商： MC68HC05C9AFBE
Serial Communications Interface (SCI)
Receiver Wakeup Operation
MC68HC05C9A — Rev. 4.0
General Release Specification
Serial Communications Interface (SCI)
NON-DISCLOSURE
AGREEMENT
REQUIRED
9.8 Receiver Wakeup Operation
The receiver logic hardware also supports a receiver wakeup function
which is intended for systems having more than one receiver. With this
function a transmitting device directs messages to an individual receiver
or group of receivers by passing addressing information as the initial
byte(s) of each message. The wakeup function allows receivers not
addressed to remain in a dormant state for the remainder of the
unwanted message. This eliminates any further software overhead to
service the remaining characters of the unwanted message and thus
improves system performance.
The receiver is placed in wakeup mode by setting the receiver wakeup
bit (RWU) in the SCCR2 register. While RWU is set, all of the receiver-
related status flags (RDRF, IDLE, OR, NF, and FE) are inhibited (cannot
become set).
NOTE:
The idle line detect function is inhibited while the RWU bit is set.
Although RWU may be cleared by a software write to SCCR2, it would
be unusual to do so.
Normally, RWU is set by software and is cleared automatically in
hardware by one of these methods: idle line wakeup or address mark
wakeup.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關PDF資料
PDF描述
MC68HSC05C9ACFB 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQFP44
MC68HC05C9AP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
MC68HC05C9AFNE 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HSC05C9ACFN 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQCC44
MC68HSC05C9ACB 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PDIP42
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC05C9AFN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AMB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AMFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AMFN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AMP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*