參數(shù)資料
型號: HD404394S
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer(4位單片微計算機)
中文描述: 4位HMCS400系列微電腦(4位單片微計算機)
文件頁數(shù): 47/100頁
文件大小: 610K
代理商: HD404394S
HD404344R Series/HD404394 Series
47
Bit
Initial value
Read/Write
Bit name
3
0
W
SMR3
2
0
W
SMR2
0
0
W
SMR0
1
0
W
SMR1
Serial mode register (SMR: $005)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
SMR2
S
SMR1
SMR3
0
1
R0
0
/
SCK
Mode Selection
R0
0
SCK
SCK
Output
Output
Input
Clock Source
External clock
Division Ratio
Prescaler
System clock
Figure 22 Serial Mode Register (SMR)
Bit
Initial value
Read/Write
Bit name
3
0
W
AMR13
2
0
W
AMR12
0
0
W
AMR10
1
0
W
AMR11
AMR10
*
0
1
AN
0
A/D mode register 1 (AMR1: $019)
AMR11
0
1
AN
1
AMR12
0
1
R3
2
/AN
2
Mode Selection
R3
2
AN
2
AMR13
0
1
R3
3
/AN
3
Mode Selection
R3
3
AN
3
R3
0
/AN
0
Mode Selection
R3
0
R3
1
/AN
1
Mode Selection
R3
1
Note:
*
Available for the HD404344R series and HD4074344, but not available for the HD404394 series.
Figure 23 A/D Mode Register 1 (AMR1)
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