Fujitsu FR81S User Manual
CHAPTER 28: REAL-TIME CLOCK(RTC)
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: REAL-TIME CLOCK(RTC)
FUJITSU SEMICONDUCTOR CONFIDENTIAL
8
[bit16] INT4 : 0.5 second interrupt request flag
INT4
State
Read
Write
0
0.5 second interrupt request not
generated
Flag clear
1
0.5 second interrupt request generated
This does not affect the operations
When the frequency division output of the borrow signal of the sub-second counter (22-bit down counter) is
enabled, the flag will be set to "1".
[bit15] INTE3 : 1 day interrupt request enable
INTE3
Operation
0
1 day (24 hours) interrupt request disabled
1
1 day (24 hours) interrupt request enabled
[bit14] INT3 : 1 day interrupt request flag
INT3
State
Read
Write
0
1 day (24 hours) interrupt reques not
generated
Flag clear
1
1 day (24 hours) interrupt request
generated
This does not affect the operations
When overflow occurs in the hour counter, the flag will be set to "1".
MB91520 Series
MN705-00010-1v0-E
1047