Fujitsu FR81S User Manual
CHAPTER 20: RELOAD TIMER
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : RELOAD TIMER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
51
5.5. Priority of Concurrent Operations
The priority of concurrent operations is shown below.
When two events to decide the timer operation occur simultaneously, the priority of deciding the operating
state is indicated.
state is indicated.
1. Writing to register
2. Trigger input
3. Underflow
4. Clock input
2. Trigger input
3. Underflow
4. Clock input
When a set of each flag by the timer operation and a clear of a flag by register write occur concurrently, the
priority of deciding the operation is indicated.
priority of deciding the operation is indicated.
1. Setting flag by the timer operation
2. Writing to a register for a clear of flag to the UF bit/EF bit
2. Writing to a register for a clear of flag to the UF bit/EF bit
MB91520 Series
MN705-00010-1v0-E
778