參數(shù)資料
型號: HD404848FS
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機
文件頁數(shù): 94/125頁
文件大小: 471K
代理商: HD404848FS
HD404849 Series
94
A/D Data Register (ADRL: $017, ADRU: $018):
8-bit read-only register consisting of a 4-bit lower
digit and 4-bit upper digit. This register is not cleared by reset. Any data read during A/D conversion is
not guaranteed. After the completion of A/D conversion, the resultant eight-bit data is held in this register
until the start of the next conversion (figures 79, 80, and 81).
3
2
1
0
MSB
LSB
3
2
1
0
Bit 0
Bit 7
ADRU: $018
ADRL: $017
RESULT
Figure 79 A/D Data Registers
Bit
Initial value
Read/Write
Bit name
3
0
R
ADRL3
2
0
R
ADRL2
0
0
R
ADRL0
1
0
R
ADRL1
A/D data register (lower digit) (ADRL: $017)
Figure 80 A/D Data Register Lower Digit (ADRL)
Bit
Initial value
Read/Write
Bit name
A/D data register (upper digit) (ADRU: $018)
2
0
R
ADRU2
1
0
R
ADRU1
0
0
R
ADRU0
3
1
R
ADRU3
Figure 81 A/D Data Register Upper Digit (ADRU)
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