參數(shù)資料
型號: MC68HC05P18A
廠商: Motorola, Inc.
英文描述: Low Cost HCMOS Microcontroller(低成本、8位HCMOS微控制器)
中文描述: 低成本HCMOS微控制器(低成本,8位HCMOS微控制器)
文件頁數(shù): 66/130頁
文件大小: 1200K
代理商: MC68HC05P18A
L
G
R
16-Bit Timer
Technical Data
MC68HC05P18A
66
16-Bit Timer
MOTOROLA
The timer registers and alternate counter registers can be read at any
time without affecting their values. However, the alternate counter
registers differ from the timer registers in one respect: A read of the timer
register MSB can clear the timer overflow flag (TOF). Therefore, the
alternate counter registers can be read at any time without the possibility
Address:
$0018
Bit 7
6
5
4
3
2
1
Bit 0
Read:
TMRH7
TMRH6
TMRH5
TMRH4
TMRH3
TMRH2
TMRH1
TMRH0
Write:
Reset:
1
1
1
1
1
1
1
1
Address:
$0019
Bit 7
6
5
4
3
2
1
Bit 0
Read:
TMRL7
TMRL6
TMRL5
TMRL4
TMRL3
TMRL2
TMRL1
TMRL0
Write:
Reset:
1
1
1
1
1
1
1
1
= Unimplemented
Figure 8-2. Timer Counter Registers (TMRH/TMRL)
Address:
$001A
Bit 7
6
5
4
3
2
1
Bit 0
Read:
ACRH7
ACRH6
ACRH5
ACRH4
ACRH3
ACRH2
ACRH1
ACRH0
Write:
Reset:
1
1
1
1
1
1
1
1
Address:
$001B
Bit 7
6
5
4
3
2
1
Bit 0
Read:
ACRL7
ACRL6
ACRL5
ACRL4
ACRL3
ACRL2
ACRL1
ACRL0
Write:
Reset:
1
1
1
1
1
1
1
1
= Unimplemented
Figure 8-3. Alternate Counter Registers (ACRH/ACRL)
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