參數(shù)資料
型號(hào): HD404654S
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 44/109頁(yè)
文件大?。?/td> 430K
代理商: HD404654S
HD404654 Series
44
Bit
Initial value
Read/Write
Bit name
3
0
W
SM1A3
2
0
W
SM1A2
0
0
W
SM1A0
1
0
W
SM1A1
Serial mode register 1A (SM1A: $005)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Output
Output
Output
Output
Output
Output
Output
Input
Prescaler
Prescaler
Prescaler
Prescaler
Prescaler
Prescaler
System clock
External clock
÷
2048
÷
512
÷
128
÷
32
÷
8
÷
2
Prescaler
division
ratio
SM1A2
SM1A0
SM1A1
Clock source
SM1A3
0
1
R4
1
/
SCK
1
mode selection
SCK
1
R4
1
SCK
1
Figure 28 Serial Mode Register 1A (SM1A)
PMRA0
0
1
R4
3
/SO
1
mode selection
R4
3
SO
1
Bit
Initial value
Read/Write
Bit name
2
Not used
0
0
W
PMRA0
1
0
W
PMRA1
Port mode register A (PMRA: $004)
PMRA1
0
1
R4
2
/SI
1
mode selection
R4
2
SI
1
3
Not used
Figure 29 Port Mode Register A (PMRA)
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404654SERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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HD404668 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
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