參數(shù)資料
型號： MC68HC05E6CDW
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, PDSO28
封裝： PLASTIC, SOIC-28
文件頁數(shù)： 72/140頁
文件大?。?/td> 1584K
代理商： MC68HC05E6CDW
Input/Output Ports
Port A
MC68HC05E6 — Rev. 1.0
Input/Output Ports
Port A
This 8-bit port comprises a data register and a data direction register.
When the pins of port A are configured as inputs they have fixed pull-up
resistors connected to them.
The pull-ups and pull-downs associated with ports A, B and C are MOS
transistors which vary with the supply voltage and the loading on the
pins.
Reset does not affect the state of the data register, but clears the data
direction register, thereby returning all port pins to input mode with
pull-up resistors. Writing a ‘1’ to any DDR bit sets the corresponding port
pin to output mode.
Port B
This 8-bit port comprises a data register and a data direction register.
When the pins of port B are configured as inputs they have fixed
pull-down resistors connected to them.
Reset does not affect the state of the data register, but clears the data
direction register, thereby returning all port pins to input mode with
pull-down resistors. Writing a ‘1’ to any DDR bit sets the corresponding
port pin to output mode.
NOTE:
PB5–PB7 are not available in the 28-pin package.
Port C
This 8-bit bidirectional port shares two of its pins with the timer
subsystem and comprises a data register (PORTC), a data direction
register (DDRC) and a configuration register (CONFC). The behaviour
of the port C I/O pins is determined by the configuration of the DDRC and
the CONFC registers as shown in Table 5. During power-on or reset, all
3-ports
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For More Information On This Product,
Go to: www.freescale.com
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相關(guān)PDF資料
PDF描述
MC68HC05E6MFB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC05E6VDWR2 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705E6MFB 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC705E6CFB 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC705E6VDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05E6CFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05E6DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05E6FB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05E6MDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05E6MFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
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