Fujitsu FR81S User Manual
CHAPTER 49: BUS DIAGNOSIS FUNCTION
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : BUS DIAGNOSIS FUNCTION
FUJITSU SEMICONDUCTOR CONFIDENTIAL
19
5. Operation
This section explains the Operation of bus diagnosis function.
If an access is made from AHB, APB, or Rbus, the bus diagnosis performs parity check for the address,
data, and control buses to diagnose the address, data, and control bus as being correct.
If a bus is determined as failure by AHB, APB, or Rbus, the content of each error is notified to the bus
diagnosis status register and address of resource to the bus diagnosis address register, and the content of
failure can be determined.
During writing, no writing is made to a peripheral resource if an address parity error, data parity error and
control parity error are generated.
MB91520 Series
MN705-00010-1v0-E
2112