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STCOM10 数据表(PDF) 20 Page - STMicroelectronics |
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STCOM10 数据表(HTML) 20 Page - STMicroelectronics |
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20 / 58 page ![]() Description STCOM 20/58 DocID028515 Rev 1 1.6 Memories 1.6.1 Embedded Flash memory The embedded Flash has the following features: 640 kB or 1 MB of size 128-bit wide data read 64-bit data write through a double 32-bit bus write Sector erase with possibility to suspend erase procedure in case of read access to other flash sectors Multiple sector erase. Shadow sector is accessible only in some security levels (see Section 1.12: Boot modes on page 28). 1.6.2 One-time programmable (OTP) section The STCOM embeds a one-time programmable (OTP) section in the shadow sector of the embedded Flash memory. During the manufacturing process, the EUI48 is stored in this section. The user can also write its private key used during the boot process to verify and authenticate the firmware image. This OTP section can be configured to avoid reads by firmware in order to protect user confidential information (see Section 1.12). Table 4. Embedded Flash sectors Block Name Number Base address Size Note Main memory B0F0 0 0x00000000 16 kB B0F1 1 0x00004000 16 kB B0F2 2 0x00008000 32 kB B0F3 3 0x00010000 32 kB B0F4 4 0x00018000 16 kB B0F5 5 0x0001C000 16 kB B0F6 6 0x00020000 64 kB B0F7 7 0x00030000 64 kB B0F8 8 0x00040000 128 kB B0F9 9 0x00060000 128 kB B0FA 10 0x00080000 128 kB Not available in STCOM05 B0FB 11 0x000A0000 128 kB Not available in STCOM05 B0FC 12 0x000C0000 128 kB Not available in STCOM05 B0FD 13 0x000E0000 128 kB Shadow sector B0SH 14 0x00100000 16 kB |
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