ST10F273Z4 STMicroelectronics, ST10F273Z4 Datasheet - Page 41

• Manufacturer Part Number: ST10F273Z4
• Description: 16-BIT MICROCONTROLLER WITH MAC UNIT, UP TO 832 KBYTES FLASH MEMORY AND UP TO 68 KBYTES RAM
• Manufacturer: STMicroelectronics

Specifications of ST10F273Z4

• Single Voltage Supply: 5 V ±10%

ST10F273Z4
Then the operation can be resumed in the following way:
Before resuming a suspended Erase, FCR1H/FCR1L must be read to check if the Erase is
already completed (FCR1H = FCR1L = 0x0000 if Erase is complete). Original setup of
Select Operation bits in FCR0H/L must be restored before the operation resume, otherwise
the operation is aborted and bit RESER of FER is set.
Erase suspend, program and resume
A Sector Erase operation can be suspended in order to program (Word or Double Word)
another sector.
Example: Sector Erase of sector B0F1.
Example: Sector Erase Suspend.
Example: Word Program of data 0x5555AAAA at address 0x045554.
Once the Program operation is finished, the Erase operation can be resumed in the
following way:
Notice that during the Program Operation in Erase suspend, bits SER and SUSP are low. A
Word or Double Word Program during Erase Suspend cannot be suspended.
In summary:
A Sector Erase can be suspended by setting SUSP bit.
●
●
●
FCR0H
FCR0H
FCR0H
FCR1L
FCR0H
FCR0H
do
{tmp1
} while ((tmp1 && 0x0010) || (tmp2 && 0x8000));
FCR0H
FCR0H|= 0x2080;/*Set WPG in FCR0H, SMOD must be set*/
FARL
FARH
FDR0L
FDR0H
FCR0H
FCR0H|= 0x0800;/*Set SER in FCR0H*/
FCR0H|= 0x8000;/*Operation resume*/
tmp2
To perform a Word Program operation during Erase Suspend, firstly bits SUSP and
SER must be reset, then bit WPG and WMS can be set.
To resume the Sector Erase operation bit SER must be set again.
In any case it is forbidden to start any write operation with SUSP bit already set.
|= 0x0800;
|= 0x8000;
|= 0x0880;
|= 0x0002;
|= 0x8000;
|= 0x4000;
= FCR0L;
= FCR0H;
&= 0xBFFF;
|= 0x8000;
= 0x5554;
= 0x0004;
= 0xAAAA;
= 0x5555;
/*Set SER in FCR0H, SMOD must be set*/
/*Set B0F1*/
/*Operation start*/
/*Set SUSP in FCR0H*/
/*Loop to wait for LOCK=0 and WMS=0*/
/*Rst SUSP in FCR0H*/
/*Set SER in FCR0H*/
/*Operation resume*/
/*Load Add in FARL*/
/*Load Add in FARH*/
/*Load Data in FDR0L*/
/*Load Data in FDR0H*/
/*Operation start*/
Internal Flash memory
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