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ST10F272Z2 Datasheet(PDF) 44 Page - STMicroelectronics |
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ST10F272Z2 Datasheet(HTML) 44 Page - STMicroelectronics |
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44 / 189 page  Internal Flash memory ST10F272Z2 44/189 A Sector Erase can be suspended by setting SUSP bit. ● 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. Set protection Example 1: Enable Write Protection of sectors B0F3-0 of Bank 0 in IFLASH module. FCR0H |= 0x0100; /*Set SPR in FCR0H*/ FARL = 0xDFB4; /*Load Add of register FNVWPIR in FARL*/ FARH = 0x0008; /*Load Add of register FNVWPIR in FARH*/ FDR0L = 0xFFF0; /*Load Data in FDR0L*/ FDR0H = 0xFFFF; /*Load Data in FDR0H*/ FCR0H |= 0x8000; /*Operation start*/ Example 2: Enable Access and Debug Protection. FCR0H |= 0x0100; /*Set SPR in FCR0H*/ FARL = 0xDFB8; /*Load Add of register FNVAPR0 in FARL*/ FARH = 0x0008; /*Load Add of register FNVAPR0 in FARH*/ FDR0L = 0xFFFC; /*Load Data in FDR0L*/ FCR0H |= 0x8000; /*Operation start*/ Example 3: Disable in a permanent way Access and Debug Protection. XFVTAUR0 = 0x0001; /*Set TAUB in XFVTAUR0*/ FCR0H |= 0x0100; /*Set SPR in FCR0H*/ FARL = 0xDFBC; /*Load Add of register FNVAPR1L in FARL*/ FARH = 0x0008; /*Load Add of register FNVAPR1L in FARH*/ FDR0L = 0xFFFE; /*Load Data in FDR0L for clearing PDS0*/ FCR0H |= 0x8000; /*Operation start*/ Example 4: Enable again in a permanent way Access and Debug Protection, after having disabled them. XFVTAUR0 = 0x0001; /*Set TAUB in XFVTAUR0*/ FCR0H |= 0x0100; /*Set SPR in FCR0H*/ FARL = 0xDFBC; /*Load Add register FNVAPR1H in FARL*/ FARH = 0x0008; /*Load Add register FNVAPR1H in FARH*/ FDR0H = 0xFFFE; /*Load Data in FDR0H for clearing PEN0*/ FCR0H |= 0x8000; /*Operation start*/ XFVTAUR0 = 0x0000; /*Reset TAUB in XFVTAUR0*/ Disable and re-enable of Access and Debug Protection in a permanent way (as shown by examples 3 and 4) can be done for a maximum of 16 times. |
Similar Part No. - ST10F272Z2_08 |
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Similar Description - ST10F272Z2_08 |
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