Fujitsu FR81S User Manual
CHAPTER 44: 12-BIT A/D CONVERTER
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 12-BIT A/D CONVERTER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
98
5.2.16.
Range comparison function
The range comparison function is explained.
Range comparison upper and lower bound threshold setting
The upper bound threshold setting register (ADRCUT) and the lower bound threshold setting register
(ADRCLT) can set 4 types of each unit. The setting selects one from the combination of the upper and
lower bound threshold setting register of 4 types by the upper and lower bound threshold select bit
(ADRCCS.RCOTS1,RCOTS0) of each activation channel.
Table 5-7Range comparison upper and lower bound threshold setting
Upper and lower
bound threshold
select bit
(ADRCCS:
RCOTS1,RCOTS0)
Select result
A/D convertor unit 0
A/D convertor unit 1
"00
B
"
Upper bound threshold setting register 0
(ADRCUT0)/
Lower bound threshold setting register 0
(ADRCLT0)
Upper bound threshold setting register 4
(ADRCUT4)/
Lower bound threshold setting register 4
(ADRCLT4)
"01
B
"
Upper bound threshold setting register 1
(ADRCUT1)/
Lower bound threshold setting register 1
(ADRCLT1)
Upper bound threshold setting register 5
(ADRCUT5)/
Lower bound threshold setting register 5
(ADRCLT5)
"10
B
"
Upper bound threshold setting register 2
(ADRCUT2)/
Lower bound threshold setting register 2
(ADRCLT2)
Upper bound threshold setting register 6
(ADRCUT6)/
Lower bound threshold setting register 6
(ADRCLT6)
"11
B
"
Upper bound threshold setting register 3
(ADRCUT3)/
Lower bound threshold setting register 3
(ADRCLT3)
Upper bound threshold setting register 7
(ADRCUT7)/
Lower bound threshold setting register 7
(ADRCLT7)
MB91520 Series
MN705-00010-1v0-E
1901