st10f272z2 STMicroelectronics, st10f272z2 Datasheet - Page 45

• Manufacturer Part Number: st10f272z2
• Description: 16-bit Mcu With 256 Kbyte Flash Memory And 20 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F272Z2
5.7
Write operation summary
In general, each write operation is started through a sequence of 3 steps:
1.
2.
3.
Once selected, but not yet started, one operation can be canceled by resetting the operation
selection bit.
A summary of the available Flash Module Write Operations are shown in the following
Table
Table 25.
Word Program (32-bit)
Double Word Program (64-bit)
Sector Erase
Set Protection
Program/Erase Suspend
The first instruction is used to select the desired operation by setting its corresponding
selection bit in the Flash Control Register 0.
The second step is the definition of the Address and Data for programming or the
Sectors or Banks to erase.
The last instruction is used to start the write operation, by setting the start bit WMS in
the FCR0.
25.
Operation
Flash write operations
Select bit
DWPG
SUSP
WPG
SER
SPR
Address and data
FDR0L/FDR0H
FDR0L/FDR0H
FDR1L/FDR1H
FCR1L/FCR1H
FDR0L/FDR0H
FARL/FARH
FARL/FARH
None
Internal Flash memory
Start bit
WMS
WMS
WMS
WMS
None
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