Fujitsu FR81S User Manual
CHAPTER 46: WORKFLASH MEMORY
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : WORKFLASH MEMORY
FUJITSU SEMICONDUCTOR CONFIDENTIAL
11
[bit0]DFRDY (WorkFlash ReaDY) : WorkFlash write enable
This bit indicates whether the flash memory write/erase operation by automatic algorithm is currently
running or finished. Flash memory data cannot be written or erased while the operation is in progress.
DFRDY
Description
0
During operation (write/erase disabled, read status enabled)
1
Completion of operation (write/erase enabled, read enabled)
The correct value might not be read out immediately after a command of automatic algorithm has been
issued. Therefore, ignore the first read value of this bit after the command issuance.
MB91520 Series
MN705-00010-1v0-E
1982