OB_SPC OB_SPC 0x0 0x8 read-write 0xA5 FFFF OB_SPC Option byte security protection value Option byte security protection value 0xA5 : no security protection any value except 0xA5 or 0xCC : protection level low 0xCC : protection level high 0 8 OB_SPC_N OB_SPC_N 0x1 0x8 read 0x5A 0 OB_SPC_N SPC complement value SPC complement value 0 8 OB_USER OB_USER 0x2 0x8 read-write 0xFF FFFF FB_MODE FB_MODE FB_MODE 0: Flash Bank 1 is mapped at 0x0800 0000 (aliased at 0x0000 0000) and Flash Bank 0 is mapped at 0x0804 0000 (aliased at 0x0004 0000) 1: Flash Bank 0 is mapped at 0x0800 0000 (aliased at 0x0000 0000) and Flash Bank 1 is mapped at 0x0804 0000 (aliased at 0x0004 0000) 7 1 SRAM_PARITY_CHECK Enable SRAM parity check SRAM_PARITY_CHECK 0: Enable SRAM parity check 1: Disable SRAM parity check 6 1 VDDA_VISOR Enable VDDA monitor VDDA_VISOR 0: Disable VDDA monitor 1: Enable VDDA monitor 5 1 BOOT1_n BOOT1 bit BOOT1_n 0: BOOT1 bit is 1 1: BOOT1 bit is 0 4 1 nRST_STDBY Generate a reset instead of entering standby mode nRST_STDBY 0: generate a reset instead of entering standby mode 1: no reset when entering standby mode 2 1 nRST_DPSLP Generate a reset instead of entering Deep-sleep mode nRST_DPSLP 0: generate a reset instead of entering Deep-sleep mode 1: no reset when entering Deep-sleep mode 1 1 nWDG_HW Hardware free watchdog nWDG_HW 0: hardware free watchdog 1: software free watchdog 0 1 OB_USER_N OB_USER_N 0x3 0x8 read 0x00 0x2 USER_N USER complement value USER complement value 0 8 OB_DATA[7:0] OB_DATA[7:0] 0x4 0x8 read-write 0xFF FFFF OB_DATA[7:0] user defined data bit 7 to 0 user defined data bit 7 to 0 0 8 OB_DATA_N[7:0] OB_DATA_N[7:0] 0x5 0x8 read 0x00 0x4 OB_DATA_N[7:0] DATA complement value bit 7 to 0 DATA complement value bit 7 to 0 0 8 OB_DATA[15:8] OB_DATA[15:8] 0x6 0x8 read-write 0xFF FFFF OB_DATA[15:8] user defined data bit 15 to 8 user defined data bit 15 to 8 0 8 OB_DATA_N[15:8] OB_DATA_N[15:8] 0x7 0x8 read 0x00 0x6 OB_DATA_N[15:8] DATA complement value bit 15 to 8 DATA complement value bit 15 to 8 0 8 OB_WP[7:0] OB_WP[7:0] 0x8 0x8 read-write 0xFF FFFF OB_WP[7] 0x0805C000~0x0805FFFF Page Erase/Program Protection bit 7(0x0801C000~0x0801FFFF) 0: protection active 1: unprotected 7 1 OB_WP[6] 0x08058000~0x0805BFFF Page Erase/Program Protection bit 6(0x08018000~0x0801BFFF) 0: protection active 1: unprotected 6 1 OB_WP[5] 0x08054000~0x08057FFF Page Erase/Program Protection bit 5(0x08014000~0x08017FFF) 0: protection active 1: unprotected 5 1 OB_WP[4] 0x08050000~0x08053FFF Page Erase/Program Protection bit 4(0x08010000~0x08013FFF) 0: protection active 1: unprotected 4 1 OB_WP[3] 0x0804C000~0x0804FFFF Page Erase/Program Protection bit 3(0x0800C000~0x0800FFFF) 0: protection active 1: unprotected 3 1 OB_WP[2] 0x08048000~0x0804BFFF Page Erase/Program Protection bit 2(0x08008000~0x0800BFFF) 0: protection active 1: unprotected 2 1 OB_WP[1] 0x08044000~0x08047FFF Page Erase/Program Protection bit 1(0x08004000~0x08007FFF) 0: protection active 1: unprotected 1 1 OB_WP[0] 0x08040000~0x08043FFF Page Erase/Program Protection bit 0(0x08000000~0x08003FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[7:0] OB_WP_N[7:0] 0x9 0x8 read 0x00 0x8 WP_N[7:0] WP complement value bit 7 to 0 WP complement value bit 7 to 0 0 8 OB_WP[15:8] OB_WP[15:8] 0xA 0x8 read-write 0xFF FFFF OB_WP[15] 0x0807C000~0x0807FFFF Page Erase/Program Protection bit 15(0x0803C000~0x0803FFFF) 0: protection active 1: unprotected 7 1 OB_WP[14] 0x08078000~0x0807BFFF Page Erase/Program Protection bit 14(0x08038000~0x0803BFFF) 0: protection active 1: unprotected 6 1 OB_WP[13] 0x08074000~0x08077FFF Page Erase/Program Protection bit 13(0x08034000~0x08037FFF) 0: protection active 1: unprotected 5 1 OB_WP[12] 0x08070000~0x08073FFF Page Erase/Program Protection bit 12(0x08030000~0x08033FFF) 0: protection active 1: unprotected 4 1 OB_WP[11] 0x0806C000~0x0806FFFF Page Erase/Program Protection bit 11(0x0802C000~0x0802FFFF) 0: protection active 1: unprotected 3 1 OB_WP[10] 0x08068000~0x0806BFFF Page Erase/Program Protection bit 10(0x08028000~0x0802BFFF) 0: protection active 1: unprotected 2 1 OB_WP[9] 0x08064000~0x08067FFF Page Erase/Program Protection bit 9(0x08024000~0x08027FFF) 0: protection active 1: unprotected 1 1 OB_WP[8] 0x08060000~0x08063FFF Page Erase/Program Protection bit 8(0x08020000~0x08023FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[15:8] OB_WP_N[15:8] 0xB 0x8 read 0x00 0xA OB_WP_N[15:8] WP complement value bit 15 to 8 WP complement value bit 15 to 8 0 8 OB_WP[23:16] OB_WP[23:16] 0xC 0x8 read-write 0xFF FFFF OB_WP[23] 0x0801C000~0x0801FFFF Page Erase/Program Protection bit 23(0x0805C000~0x0805FFFF) 0: protection active 1: unprotected 7 1 OB_WP[22] 0x08018000~0x0801BFFF Page Erase/Program Protection bit 22(0x08058000~0x0805BFFF) 0: protection active 1: unprotected 6 1 OB_WP[21] 0x08014000~0x08017FFF Page Erase/Program Protection bit 21(0x08054000~0x08057FFF) 0: protection active 1: unprotected 5 1 OB_WP[20] 0x08010000~0x08013FFF Page Erase/Program Protection bit 20(0x08050000~0x08053FFF) 0: protection active 1: unprotected 4 1 OB_WP[19] 0x0800C000~0x0800FFFF Page Erase/Program Protection bit 19(0x0804C000~0x0804FFFF) 0: protection active 1: unprotected 3 1 OB_WP[18] 0x08008000~0x0800BFFF Page Erase/Program Protection bit 18(0x08048000~0x0804BFFF) 0: protection active 1: unprotected 2 1 OB_WP[17] 0x08004000~0x08007FFF Page Erase/Program Protection bit 17(0x08044000~0x08047FFF) 0: protection active 1: unprotected 1 1 OB_WP[16] 0x08000000~0x08003FFF Page Erase/Program Protection bit 16(0x08040000~0x08043FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[23:16] OB_WP_N[23:16] 0xB 0x8 read 0x00 0xD OB_WP_N[23:16] WP complement value bit 23 to 16 WP complement value bit 23 to 16 0 8 OB_WP[31:24] OB_WP[31:24] 0xE 0x8 read-write 0xFF FFFF OB_WP[31] 0x0803C000~0x0803FFFF Page Erase/Program Protection bit 31(0x0805D000~0x0807FFFF) 0: protection active 1: unprotected 7 1 OB_WP[30] 0x08038000~0x0803BFFF Page Erase/Program Protection bit 30(0x0805B000~0x0805CFFF) 0: protection active 1: unprotected 6 1 OB_WP[29] 0x08034000~0x08037FFF Page Erase/Program Protection bit 29(0x08059000~0x0805AFFF) 0: protection active 1: unprotected 5 1 OB_WP[28] 0x08030000~0x08033FFF Page Erase/Program Protection bit 28(0x08057000~0x08058FFF) 0: protection active 1: unprotected 4 1 OB_WP[27] 0x0802C000~0x0802FFFF Page Erase/Program Protection bit 27(0x08055000~0x08056FFF) 0: protection active 1: unprotected 3 1 OB_WP[26] 0x08028000~0x0802BFFF Page Erase/Program Protection bit 26(0x08053000~0x08054FFF) 0: protection active 1: unprotected 2 1 OB_WP[25] 0x08024000~0x08027FFF Page Erase/Program Protection bit 25(0x08041000~0x08052FFF) 0: protection active 1: unprotected 1 1 OB_WP[24] 0x08020000~0x08023FFF Page Erase/Program Protection bit 24(0x0803F000~0x08040FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[31:24] OB_WP_N[31:24] 0xF 0x8 read 0x00 0xD OB_WP_N[31:24] WP complement value bit 31 to 24 WP complement value bit 31 to 24 0 8 OB_SPC OB_SPC 0x0 0x8 read-write 0xA5 FFFF OB_SPC Option byte security protection value Option byte security protection value 0xA5 : no security protection any value except 0xA5 or 0xCC : protection level low 0xCC : protection level high 0 8 OB_SPC_N OB_SPC_N 0x1 0x8 read 0x5A 0 OB_SPC_N SPC complement value SPC complement value 0 8 OB_USER OB_USER 0x2 0x8 read-write 0xFF FFFF FB_MODE FB_MODE FB_MODE 0: Flash Bank 1 is mapped at 0x0800 0000 (aliased at 0x0000 0000) and Flash Bank 0 is mapped at 0x0804 0000 (aliased at 0x0004 0000) 1: Flash Bank 0 is mapped at 0x0800 0000 (aliased at 0x0000 0000) and Flash Bank 1 is mapped at 0x0804 0000 (aliased at 0x0004 0000) 7 1 SRAM_PARITY_CHECK Enable SRAM parity check SRAM_PARITY_CHECK 0: Enable SRAM parity check 1: Disable SRAM parity check 6 1 VDDA_VISOR Enable VDDA monitor VDDA_VISOR 0: Disable VDDA monitor 1: Enable VDDA monitor 5 1 BOOT1_n BOOT1 bit BOOT1_n 0: BOOT1 bit is 1 1: BOOT1 bit is 0 4 1 nRST_STDBY Generate a reset instead of entering standby mode nRST_STDBY 0: generate a reset instead of entering standby mode 1: no reset when entering standby mode 2 1 nRST_DPSLP Generate a reset instead of entering Deep-sleep mode nRST_DPSLP 0: generate a reset instead of entering Deep-sleep mode 1: no reset when entering Deep-sleep mode 1 1 nWDG_HW Hardware free watchdog nWDG_HW 0: hardware free watchdog 1: software free watchdog 0 1 OB_USER_N OB_USER_N 0x3 0x8 read 0x00 0x2 USER_N USER complement value USER complement value 0 8 OB_DATA[7:0] OB_DATA[7:0] 0x4 0x8 read-write 0xFF FFFF OB_DATA[7:0] user defined data bit 7 to 0 user defined data bit 7 to 0 0 8 OB_DATA_N[7:0] OB_DATA_N[7:0] 0x5 0x8 read 0x00 0x4 OB_DATA_N[7:0] DATA complement value bit 7 to 0 DATA complement value bit 7 to 0 0 8 OB_DATA[15:8] OB_DATA[15:8] 0x6 0x8 read-write 0xFF FFFF OB_DATA[15:8] user defined data bit 15 to 8 user defined data bit 15 to 8 0 8 OB_DATA_N[15:8] OB_DATA_N[15:8] 0x7 0x8 read 0x00 0x6 OB_DATA_N[15:8] DATA complement value bit 15 to 8 DATA complement value bit 15 to 8 0 8 OB_WP[7:0] OB_WP[7:0] 0x8 0x8 read-write 0xFF FFFF OB_WP[7] 0x0801C000~0x0801FFFF Page Erase/Program Protection bit 7(0x0801C000~0x0801FFFF) 0: protection active 1: unprotected 7 1 OB_WP[6] 0x08018000~0x0801BFFF Page Erase/Program Protection bit 6(0x08018000~0x0801BFFF) 0: protection active 1: unprotected 6 1 OB_WP[5] 0x08014000~0x08017FFF Page Erase/Program Protection bit 5(0x08014000~0x08017FFF) 0: protection active 1: unprotected 5 1 OB_WP[4] 0x08010000~0x08013FFF Page Erase/Program Protection bit 4(0x08010000~0x08013FFF) 0: protection active 1: unprotected 4 1 OB_WP[3] 0x0800C000~0x0800FFFF Page Erase/Program Protection bit 3(0x0800C000~0x0800FFFF) 0: protection active 1: unprotected 3 1 OB_WP[2] 0x08008000~0x0800BFFF Page Erase/Program Protection bit 2(0x08008000~0x0800BFFF) 0: protection active 1: unprotected 2 1 OB_WP[1] 0x08004000~0x08007FFF Page Erase/Program Protection bit 1(0x08004000~0x08007FFF) 0: protection active 1: unprotected 1 1 OB_WP[0] 0x08000000~0x08003FFF Page Erase/Program Protection bit 0(0x08000000~0x08003FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[7:0] OB_WP_N[7:0] 0x9 0x8 read 0x00 0x8 WP_N[7:0] WP complement value bit 7 to 0 WP complement value bit 7 to 0 0 8 OB_WP[15:8] OB_WP[15:8] 0xA 0x8 read-write 0xFF FFFF OB_WP[15] 0x0803C000~0x0803FFFF Page Erase/Program Protection bit 15(0x0803C000~0x0803FFFF) 0: protection active 1: unprotected 7 1 OB_WP[14] 0x08038000~0x0803BFFF Page Erase/Program Protection bit 14(0x08038000~0x0803BFFF) 0: protection active 1: unprotected 6 1 OB_WP[13] 0x08034000~0x08037FFF Page Erase/Program Protection bit 13(0x08034000~0x08037FFF) 0: protection active 1: unprotected 5 1 OB_WP[12] 0x08030000~0x08033FFF Page Erase/Program Protection bit 12(0x08030000~0x08033FFF) 0: protection active 1: unprotected 4 1 OB_WP[11] 0x0802C000~0x0802FFFF Page Erase/Program Protection bit 11(0x0802C000~0x0802FFFF) 0: protection active 1: unprotected 3 1 OB_WP[10] 0x08028000~0x0802BFFF Page Erase/Program Protection bit 10(0x08028000~0x0802BFFF) 0: protection active 1: unprotected 2 1 OB_WP[9] 0x08024000~0x08027FFF Page Erase/Program Protection bit 9(0x08024000~0x08027FFF) 0: protection active 1: unprotected 1 1 OB_WP[8] 0x08020000~0x08023FFF Page Erase/Program Protection bit 8(0x08020000~0x08023FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[15:8] OB_WP_N[15:8] 0xB 0x8 read 0x00 0xA OB_WP_N[15:8] WP complement value bit 15 to 8 WP complement value bit 15 to 8 0 8 OB_WP[23:16] OB_WP[23:16] 0xC 0x8 read-write 0xFF FFFF OB_WP[23] 0x0805C000~0x0805FFFF Page Erase/Program Protection bit 23(0x0805C000~0x0805FFFF) 0: protection active 1: unprotected 7 1 OB_WP[22] 0x08058000~0x0805BFFF Page Erase/Program Protection bit 22(0x08058000~0x0805BFFF) 0: protection active 1: unprotected 6 1 OB_WP[21] 0x08054000~0x08057FFF Page Erase/Program Protection bit 21(0x08054000~0x08057FFF) 0: protection active 1: unprotected 5 1 OB_WP[20] 0x08050000~0x08053FFF Page Erase/Program Protection bit 20(0x08050000~0x08053FFF) 0: protection active 1: unprotected 4 1 OB_WP[19] 0x0804C000~0x0804FFFF Page Erase/Program Protection bit 19(0x0804C000~0x0804FFFF) 0: protection active 1: unprotected 3 1 OB_WP[18] 0x08048000~0x0804BFFF Page Erase/Program Protection bit 18(0x08048000~0x0804BFFF) 0: protection active 1: unprotected 2 1 OB_WP[17] 0x08044000~0x08047FFF Page Erase/Program Protection bit 17(0x08044000~0x08047FFF) 0: protection active 1: unprotected 1 1 OB_WP[16] 0x08040000~0x08043FFF Page Erase/Program Protection bit 16(0x08040000~0x08043FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[23:16] OB_WP_N[23:16] 0xB 0x8 read 0x00 0xD OB_WP_N[23:16] WP complement value bit 23 to 16 WP complement value bit 23 to 16 0 8 OB_WP[31:24] OB_WP[31:24] 0xE 0x8 read-write 0xFF FFFF OB_WP[31] 0x0807C000~0x0807FFFF Page Erase/Program Protection bit 31(0x0805D000~0x0807FFFF) 0: protection active 1: unprotected 7 1 OB_WP[30] 0x08078000~0x0807BFFF Page Erase/Program Protection bit 30(0x0805B000~0x0805CFFF) 0: protection active 1: unprotected 6 1 OB_WP[29] 0x08074000~0x08077FFF Page Erase/Program Protection bit 29(0x08059000~0x0805AFFF) 0: protection active 1: unprotected 5 1 OB_WP[28] 0x08070000~0x08073FFF Page Erase/Program Protection bit 28(0x08057000~0x08058FFF) 0: protection active 1: unprotected 4 1 OB_WP[27] 0x0806C000~0x0806FFFF Page Erase/Program Protection bit 27(0x08055000~0x08056FFF) 0: protection active 1: unprotected 3 1 OB_WP[26] 0x08068000~0x0806BFFF Page Erase/Program Protection bit 26(0x08053000~0x08054FFF) 0: protection active 1: unprotected 2 1 OB_WP[25] 0x08064000~0x08067FFF Page Erase/Program Protection bit 25(0x08041000~0x08052FFF) 0: protection active 1: unprotected 1 1 OB_WP[24] 0x08060000~0x08063FFF Page Erase/Program Protection bit 24(0x0803F000~0x08040FFF) 0: protection active 1: unprotected 0 1 OB_WP_N[31:24] OB_WP_N[31:24] 0xF 0x8 read 0x00 0xD OB_WP_N[31:24] WP complement value bit 31 to 24 WP complement value bit 31 to 24 0 8