參數(shù)資料
型號: MC68HC05J1AVP
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: Microcontrollers
中文描述: 微控制器
文件頁數(shù): 76/128頁
文件大小: 1620K
代理商: MC68HC05J1AVP
Technical Data
MC68HC05J1A — Rev. 3.0
76
Multifunction Timer
MOTOROLA
Multifunction Timer
8.4 COP Watchdog
Four counter stages at the end of the timer make up the mask-optional
computer operating properly (COP) watchdog. (See
Figure 8-4
.)
The COP watchdog is a software error detection system that
automatically times out and resets the MCU if not cleared periodically by
a program sequence. Writing a logic 0 to bit 0 of the COP register clears
the COP watchdog and prevents a COP reset.
COPC — COP Clear Bit
This write-only bit resets the COP watchdog. Reading address $07F0
returns the ROM data at that address.
NOTE:
The STOP instruction turns off the COP watchdog. In applications that
depend on the COP watchdog, the STOP instruction can be disabled by
a mask option.
Address:
$07F0
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Write:
COPC
Reset:
U
U
U
U
U
U
U
0
= Unimplemented
Figure 8-4. COP Register (COPR)
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料
PDF描述
MSC7116 Low-Cost 16-bit DSP with DDR Controller and 10/100 Mbps Ethernet MAC
MSC7116VF1000 Low-Cost 16-bit DSP with DDR Controller and 10/100 Mbps Ethernet MAC
MC9S12XEA1284 Reference Manual Covers MC9S12XE Family
MC9S12XEA256 Reference Manual Covers MC9S12XE Family
MC9S12XEG1284 Reference Manual Covers MC9S12XE Family
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC05J3 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3CDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3CP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit