Fujitsu FR81S User Manual
CHAPTER 44: 12-BIT A/D CONVERTER
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 12-BIT A/D CONVERTER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
43
Notes:
Please do not set "000
B
" to the continuous detection count specification and state indicate bit.
Please do not change the continuous detection count specification and state indicate bit while requesting
the A/D conversion.
Please do not change the continuous detection count specification and state indicate bit
(ADRCCS.RCOE="1") while the range comparison execution enable.
[bit4] RCOIRS : Inside/outside the range confirmation select bit
RCOIRS
Explanation
0
Confirmation outside the range
1
Confirmation inside the range
The A/D data bit selects the range comparison condition of inside/outside the range for the upper bound
threshold bit and the lower bound threshold bit selected by the upper/lower bound threshold select bit.
When confirming outside the range (RCOIRS="0"), the range comparison condition is the following.
A/D data bit (ADTCD.D11 to D0) > upper bound threshold bit (ADRCUT.C11 to C0)
or
A/D data bit (ADTCD.D11 to D0) < lower threshold bit (ADRCLT.C11 to C0).
When confirming inside the range (RCOIRS="0"), the range comparison condition is the following.
A/D data bit (ADTCD.D11 to D0) ≤ upper bound threshold bit (ADRCUT.C11 to C0)
or
A/D data bit (ADTCD.D11 to D0) ≥ lower threshold bit (ADRCLT.C11 to C0)
When the rage comparisons of confirmations outside the range are detected, this bit can confirm be
larger than the upper bound threshold or smaller than the lower bound threshold by threshold over flag
bit.
Note:
Please do not change the inside/outside the range confirmation select bit while requesting the A/D
conversion.
[bit3] RCOIE : Range comparison interrupt request enable bit
RCOIE
Explanation
0
Range comparison interrupt disable
1
Range comparison interrupt enable
When the range comparison interrupt factor flag bit of the corresponding activation channel is setting in "1"
and this bit is set to the range comparison interrupt request enable, the interrupt request is generated.
[bit2] RCOE : Range comparison execution enable bit
RCOE
Explanation
0
Range comparison execution disable
1
Range comparison execution enable
This bit selects range comparison execution enable/disable.
When range comparison execution enable bit is "0", the range comparison execution is disabled.
Moreover, the state of the continuous detection count is initialized by "000
B
".
When range comparison execution enable bit is "1", the range comparison execution is enabled.
MB91520 Series
MN705-00010-1v0-E
1846