参数资料
型号: M34551M4-XXXFP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48
封装: 7 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-48
文件页数: 7/155页
文件大小: 1467K
代理商: M34551M4-XXXFP
APPLICATION
2.4 Carrier generating circuit
2-26
4551 Group User’s Manual
2.4.2 Related registers
(1)
Carrier wave selection register C1
The output waveform of carrier wave is selected.
Set the contents of this register through register A with the TC1A instruction.
Figure 2.4.1 shows the relationship between register C1 and carrier wave.
Fig. 2.4.1 Carrier wave selection register
Duty
Frequency
Carrier wave
Register C1
Setting value
No carrier wave
“L” fixed
C10
C11
C12
1/4
1/2
1/3
1/2
Output waveform
STCK/24
STCK/16
STCR instruction
SPCR instruction
C13
STCK/12
STCK/8
STCK
1/4
1/2
1/3
1/2
(at reset: 0 1 1 1 2, at power down: 0 1 1 1 2, W)
Carrier wave selection register C1
STCK/2
No available
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
00
0
00
0
1
00
1
0
00
1
01
0
01
0
1
01
1
10
0
10
0
1
10
1
0
10
1
11
0
11
0
1
01
1
0
11
1
0
11
1
“H”
“L”
Note:“W” represents write enabled.
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