參數(shù)資料
型號(hào): MQ80C52TXXX-25:RD
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
封裝: CERAMIC, QFP-44
文件頁數(shù): 125/170頁
文件大小: 25028K
210
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Bit 5:3 – Reserved in MSPI mode
When in MSPI mode, these bits are reserved for future use. For compatibility with future devices,
these bits must be written to zero when UCSRnC is written.
Bit 2 – UDORDn: Data Order
When set to one the LSB of the data word is transmitted first. When set to zero the MSB of the
data word is transmitted first. Refer to ”Frame Formats” on page 203 for details.
Bit 1 – UCPHAn: Clock Phase
The UCPHAn bit setting determine if data is sampled on the leasing edge (first) or tailing (last)
edge of XCKn. Refer to ”SPI Data Modes and Timing” on page 203 for details.
Bit 0 – UCPOLn: Clock Polarity
The UCPOLn bit sets the polarity of the XCKn clock. The combination of the UCPOLn and
UCPHAn bit settings determine the timing of the data transfer. Refer to ”SPI Data Modes and
20.8.5
UBRRnL and UBRRnH –USART MSPIM Baud Rate Registers
The function and bit description of the baud rate registers in MSPI mode is identical to normal
相關(guān)PDF資料
PDF描述
MC80C52XXX-30:D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40
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