参数资料
型号: MC68HC05C9AB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封装: SHRINK, PLASTIC, DIP-42
文件页数: 151/160页
文件大小: 4128K
代理商: MC68HC05C9AB
NON-DISCLOSURE
AGREEMENT
REQUIRED
Serial Peripheral Interface
General Release Specification
MC68HC05C9A Rev. 4.0
Serial Peripheral Interface
10.3 Features
Features include:
Full Duplex, Four-Wire Synchronous Transfers
Master or Slave Operation
Bus Frequency Divided by 2 (Maximum) Master Bit Frequency
Bus Frequency (Maximum) Slave Bit Frequency
Four Programmable Master Bit Rates
Programmable Clock Polarity and Phase
End of Transmission Interrupt Flag
Write Collision Flag Protection
Master-Master Mode Fault Protection Capability
10.4 SPI Signal Description
The four basic signals (MOSI, MISO, SCK, and SS) are described in the
following paragraphs. Each signal function is described for both the
master and slave modes.
NOTE:
Any SPI output line has to have its corresponding data direction register
bit set. If this bit is clear, the line is disconnected from the SPI logic and
becomes a general-purpose input line. When the SPI is enabled, any
SPI input line is forced to act as an input regardless of what is in the
corresponding data direction register bit.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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