參數(shù)資料
型號: MC68HC705C9ACB
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: Microcontrollers
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封裝: PLASTIC, SHRINK, DIP-42
文件頁數(shù): 62/160頁
文件大?。?/td> 2076K
代理商: MC68HC705C9ACB
Resets
Advance Information
MC68HC705C9A — Rev. 4.0
62
Resets
MOTOROLA
5.6.2 C9A COP Control Register
The COP control register, shown in
Figure 5-5
, performs these
functions:
Enables clock monitor function
Enables MC68HC05C9A compatible COP function
Selects timeout duration of COP timer
and flags the following conditions:
A COP timeout
Clock monitor reset
COPF — Computer Operating Properly Flag
Reading the COP control register clears COPF.
1 = COP or clock monitor reset has occurred.
0 = No COP or clock monitor reset has occurred.
CME — Clock Monitor Enable Bit
This bit is readable any time, but may be written only once.
1 = Clock monitor enabled
0 = Clock monitor disabled
COPE — COP Enable Bit
This bit is readable any time. COPE, CM1, and CM0 together may be
written with a single write, only once, after reset. This bit is cleared by
reset.
1 = COP enabled
0 = COP disabled
$001E
Bit 7
6
5
4
3
2
1
Bit 0
Read:
0
0
0
COPF
CME
COPE
CM1
CM0
Write:
Reset:
0
0
0
U
0
0
0
0
= Unimplemented
U = Undetermned
Figure 5-5. COP Control Register (COPCR)
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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PDF描述
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MC68HC705C9ACFN Microcontrollers
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MC68HC705P6A HCMOS Microcontroller Unit
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