FR60 MB91460E Series - Microcontrollers - Fujitsu
FR60 MB91460E Series - Microcontrollers - Fujitsu
FR60 MB91460E Series - Microcontrollers - Fujitsu
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<strong>MB91460E</strong> <strong>Series</strong><br />
6.2.2. FSV1 (bit15 to bit0)<br />
The setting of the Flash Security Vector FSV1 bits [15:0] is responsible for the individual write protection of the<br />
8 Kbytes sectors. It is only evaluated if write protection bit FSV1[17] is set.<br />
Explanation of the bits in the Flash Security Vector FSV1 [15:0]<br />
FSV1 bit Sector<br />
Enable Write<br />
Protection<br />
Disable Write<br />
Protection<br />
Comment<br />
FSV1[0] SA0 set to “0” set to “1”<br />
FSV1[1] SA1 set to “0” set to “1”<br />
FSV1[2] SA2 set to “0” set to “1”<br />
FSV1[3] SA3 set to “0” set to “1”<br />
FSV1[4] SA4 set to “0” ⎯ Write protection is mandatory!<br />
FSV1[5] SA5 set to “0” set to “1”<br />
FSV1[6] SA6 set to “0” set to “1”<br />
FSV1[7] SA7 set to “0” set to “1”<br />
FSV1[8] ⎯ set to “0” set to “1” not available<br />
FSV1[9] ⎯ set to “0” set to “1” not available<br />
FSV1[10] ⎯ set to “0” set to “1” not available<br />
FSV1[11] ⎯ set to “0” set to “1” not available<br />
FSV1[12] ⎯ set to “0” set to “1” not available<br />
FSV1[13] ⎯ set to “0” set to “1” not available<br />
FSV1[14] ⎯ set to “0” set to “1” not available<br />
FSV1[15] ⎯ set to “0” set to “1” not available<br />
Note : It is mandatory to always set the sector where the Flash Security Vectors FSV1 and FSV2 are located to<br />
write protected (here sector SA4). Otherwise it is possible to overwrite the Security Vector to a setting where<br />
it is possible to either read out the Flash content or manipulate data by writing.<br />
See section “Flash access in CPU mode” for an overview about the sector organisation of the Flash<br />
Memory.<br />
104 DS705-00002-1v3-E
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