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STM32MP153F 数据表(PDF) 25 Page - STMicroelectronics |
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STM32MP153F 数据表(HTML) 25 Page - STMicroelectronics |
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25 / 254 page  DS12503 Rev 3 25/254 STM32MP153C/F Functional overview 55 3.5 TrustZone address space controller for DDR (TZC) TZC is used to filter read/write accesses to DDR controller according to TrustZone rights and according to non-secure master (NSAID) on up to 9 programmable regions. • Configuration is supported by trusted software only • 2 filter units working concurrently • 9 regions: – region 0 is always enabled and covers the whole address range. – regions 1 to 8 have programmable base/end address and can be assigned to any one or both filters. • Secure and non-secure access permissions programmed per region • Non-secure accesses are filtered according to NSAID • Regions controlled by same filter must not overlap • Fail modes with error and/or interrupt • Acceptance capability = 256 • Gate keeper logic to enable and disable of each filter • Speculative accesses |
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