參數(shù)資料
型號: MC68HC05C9A
廠商: Motorola, Inc.
元件分類: 8位微控制器
英文描述: 8-Bit Microcontroller(8位微控制器)
中文描述: 8位微控制器(8位微控制器)
文件頁數(shù): 49/160頁
文件大?。?/td> 783K
代理商: MC68HC05C9A
Resets
Computer Operating Properly (COP) Reset
MC68HC05C9A
Rev. 4.0
General Release Specification
MOTOROLA
Resets
49
L
G
R
COPE — COP Enable
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
CM1 — COP Mode Bit 1
Used in conjunction with CM0 to establish the COP timeout period,
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. See Table 5-1 for timeout period options.
CM0 — COP Mode Bit 0
Used in conjunction with CM1 to establish the COP timeout period,
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. See Table 5-1 for timeout period options.
Bits 7–5 — Not Used
These bits always read as zero.
Table 5-1. COP Timeout Period
CM1
CM0
f
op
/2
15
Divide By
Timeout Period
(f
osc
= 2.0 MHz)
Timeout Period
(f
osc
= 4.0 MHz)
0
0
1
32.77 ms
16.38 ms
0
1
4
131.07 ms
65.54 ms
1
0
16
524.29 ms
262.14 ms
1
1
64
2.097 sec
1.048 sec
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