參數(shù)資料
型號: MR80C52CXXX-20
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44
文件頁數(shù): 109/170頁
文件大?。?/td> 25028K
代理商: MR80C52CXXX-20
197
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Bit 0 – UCPOLn: Clock Polarity
This bit is used for synchronous mode only. Write this bit to zero when asynchronous mode is
used. The UCPOLn bit sets the relationship between data output change and data input sample,
and the synchronous clock (XCKn).
19.11.5
UBRRnL and UBRRnH – USART Baud Rate Registers
Bit 15:12 – Reserved
These bits are reserved for future use. For compatibility with future devices, these bit must be
written to zero when UBRRH is written.
Bit 11:0 – UBRR11:0: USART Baud Rate Register
This is a 12-bit register which contains the USART baud rate. The UBRRH contains the four
most significant bits, and the UBRRL contains the eight least significant bits of the USART baud
rate. Ongoing transmissions by the Transmitter and Receiver will be corrupted if the baud rate is
changed. Writing UBRRL will trigger an immediate update of the baud rate prescaler.
Table 19-8.
UCPOLn bit settings.
UCPOLn
Transmitted data changed (output of
TxDn pin)
Received data sampled (input on RxDn
pin)
0
Rising XCKn Edge
Falling XCKn Edge
1
Falling XCKn Edge
Rising XCKn Edge
Bit
151413121110
9
8
UBRR[11:8]
UBRRnH
UBRR[7:0]
UBRRnL
76543210
Read/Write
RRRR
R/W
Initial Value
00000000
相關PDF資料
PDF描述
MQ80C32E-12/883 8-BIT, 12 MHz, MICROCONTROLLER, CQFP44
MQ80C52CXXX-20:R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44
MQ80C52EXXX-25 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
MQ80C52TXXX-36SHXXX:RD 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQFP44
MQ80C52XXX-20:R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44
相關代理商/技術參數(shù)
參數(shù)描述
MR80C86 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MR80C86/B 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述:Microprocessor, 16 Bit, 44 Pin, Ceramic, LCC
MR80C86-2 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MR80C86-2/883 制造商:Rochester Electronics LLC 功能描述:- Bulk
MR80C86-2/B 制造商:Intersil Corporation 功能描述:MPU 80C86 16BIT CMOS 8MHZ 44PLCC - Rail/Tube