參數(shù)資料
型號: MC68HC705C9ACP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: Microcontrollers
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 96/160頁
文件大?。?/td> 2076K
代理商: MC68HC705C9ACP
Serial Communications Interface (SCI)
Advance Information
MC68HC705C9A — Rev. 4.0
96
Serial Communications Interface (SCI)
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
WAKE — Wakeup Method Bit
This read/write bit determines which condition wakes up the SCI: a
logic 1 (address mark) in the most significant bit (MSB) position of a
received character or an idle condition on the PD0/RDI pin. Resets
have no effect on the WAKE bit.
1 = Address mark wakeup
0 = Idle line wakeup
9.14.3 SCI Control Register 2
SCI control register 2 (SCCR2), shown in
Figure 9-10
, has these
functions:
Enables the SCI receiver and SCI receiver interrupts
Enables the SCI transmitter and SCI transmitter interrupts
Enables SCI receiver idle interrupts
Enables SCI transmission complete interrupts
Enables SCI wakeup
Transmits SCI break characters
TIE — Transmit Interrupt Enable Bit
This read/write bit enables SCI interrupt requests when the TDRE flag
becomes set. Resets clear the TIE bit.
1 = TDRE interrupt requests enabled
0 = TDRE interrupt requests disabled
$000F
Bit 7
6
5
4
3
2
1
Bit 0
Read:
TIE
TCIE
RIE
ILIE
TE
RE
RWU
SBK
Write:
Reset:
0
0
0
0
0
0
0
0
Figure 9-10. SCI Control Register 2 (SCCR2)
F
Freescale Semiconductor, Inc.
n
.
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參數(shù)描述
MC68HC705C9ACPE 制造商:Freescale Semiconductor 功能描述:
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