Fujitsu FR81S Manuel D’Utilisation
CHAPTER 44: 12-BIT A/D CONVERTER
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 12-BIT A/D CONVERTER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
41
4.2.8. Lower Bound Threshold Setting Register : ADRCLT0
to ADRCLT7
The bit configuration of the lower threshold setting register is shown.
The lower bound threshold setting register (ADRCLT) sets the lower bound threshold used by the range
comparison. Moreover, the lower bound threshold can set 4 types.
ADRCLT0: Address 140E
H
(Access: Byte, Half-word, Word)
ADRCLT1: Address 1412
H
(Access: Byte, Half-word, Word)
ADRCLT2: Address 1416
H
(Access: Byte, Half-word, Word)
ADRCLT3: Address 141A
H
(Access: Byte, Half-word, Word)
ADRCLT4: Address 157A
H
(Access: Byte, Half-word, Word)
ADRCLT5: Address 157E
H
(Access: Byte, Half-word, Word)
ADRCLT6: Address 1582
H
(Access: Byte, Half-word, Word)
ADRCLT7: Address 1586
H
(Access: Byte, Half-word, Word)
bit15
bit14
bit13
bit12
bit11
bit10
bit9
bit8
Reserved
C11
C10
C9
C8
Initial value
0
0
0
0
0
0
0
0
Attribute R0,W0
R0,W0
R0,W0
R0,W0
R/W
R/W
R/W
R/W
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
C7
C6
C5
C4
C3
C2
C1
C0
Initial value
0
0
0
0
0
0
0
0
Attribute
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
[bit15 to bit12] Reserved
These bits must always be written to "0".
[bit11 to bit0] C11 to C0 : Upper bound threshold bit
C11 to C0
Function
Lower bound threshold
These bits sets the lower bound threshold used by the range comparison.
Note:
Please do not change the lower bound threshold bit while requesting the A/D conversion.
MB91520 Series
MN705-00010-1v0-E
1844