參數(shù)資料
型號(hào): MC68HC05P4ACDW
廠商: MOTOROLA 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): 65/102頁
文件大?。?/td> 1085K
代理商: MC68HC05P4ACDW
MC68HC05P4A — Rev. 7.0
Technical Data
MOTOROLA
Computer Operating Properly (COP)
65
Technical Data — MC68HC05P4A
Section 9. Computer Operating Properly (COP)
9.1 Contents
9.2 Introduction
This device includes a watchdog computer operating properly (COP)
feature as a mask option. The COP is implemented with an 18-bit ripple
counter. This provides a timeout period of 64 milliseconds at a bus rate
of 2 MHz. If the COP should time out, a system reset will occur and the
device will be re-initialized in the same fashion as a power-on reset
(POR) or external reset.
9.3 Resetting the COP
Preventing a COP reset is done by writing a 0 to the COPR bit. This
action will reset the counter and begin the timeout period again. The
COPR bit is bit 0 of address $1FF0. A read of address $1FF0 will access
the user-defined ROM data at that location.
相關(guān)PDF資料
PDF描述
MC68HC05P4ADWR3 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05P4ADWR2 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05P4CDWR3 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05P4CDWR2 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05P4P 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05P4DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P4P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P6 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P6_1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P8 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT