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PM0214 Datasheet(PDF) 185 Page - STMicroelectronics |
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PM0214 Datasheet(HTML) 185 Page - STMicroelectronics |
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185 / 245 page  DocID022708 Rev 4 185/245 PM0214 Core peripherals 244 4.2.5 MPU type register (MPU_TYPER) Address offset: 0x00 Reset value: 0x0000 0800 Required privilege: Privileged The MPU_TYPER register indicates whether the MPU is present, and if so, how many regions it supports. 31 3029 28 27 26 25 24 23 22 21 20 19 18 17 16 Reserved IREGION[7:0] rr rrrr r r 15 14 13 12 11 10 9 8 76 54 3 21 0 DREGION[7:0] Reserved SEPA RATE r rrrr r r r Bits 31:24 Reserved. Bits 23:16 IREGION[7:0]: Number of MPU instruction regions. These bits indicates the number of supported MPU instruction regions. Always contains 0x00. The MPU memory map is unified and is described by the DREGION field. Bits 15:8 DREGION[7:0]: Number of MPU data regions. These bits indicates the number of supported MPU data regions. 0x08: Eight MPU regions 0x00: MPU not present Bits 7:1 Reserved. Bit 0 SEPARATE: Separate flag. This bit indicates support for unified or separate instruction and data memory maps: 0 = Unified 1 = Separate |
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