參數(shù)資料
型號: HD404369F
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer
中文描述: 4位HMCS400系列微機
文件頁數(shù): 86/115頁
文件大?。?/td> 452K
代理商: HD404369F
HD404369 Series
86
Registers for A/D Converter Operation
A/D Mode Register 1 (AMR1: $019):
Four-bit write-only register which selects digital or analog ports, as
shown in figure 70.
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
Figure 70 A/D Mode Register 1 (AMR1)
A/D Mode register 2 (AMR2: $01A):
Three-bit write-only register which is used to set the A/D
conversion period and to select digital or analog ports. Bit 0 of the A/D mode register selects the A/D
conversion period, and bits 1 and 2 select ports R4–R5 as pins AN
4
–AN
11
in 4-pin units (figure 71).
Bit
Initial value
Read/Write
Bit name
3
Not used
2
0
W
AMR22
0
0
W
AMR20
1
0
W
AMR21
AMR20
0
1
67t
cyc
A/D mode register 2 (AMR2: $01A)
AMR21
0
1
AN
4
–AN
7
AMR22
0
1
R5/AN
8
–AN
11
Pin Selection
R5
AN
8
–AN
11
Conversion Time
34t
cyc
R4/AN
4
–AN
7
Pin Selection
R4
Figure 71 A/D Mode Register 2 (AMR2)
相關PDF資料
PDF描述
HD404372 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉換器的低壓微計算機)
HD404082 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉換器的低壓微計算機)
HD404084 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉換器的低壓微計算機)
HD40A4081 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉換器的低壓微計算機)
HD40C4081 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉換器的低壓微計算機)
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