NXP Semiconductors freescale K51 Series Reference Manual

MPU memory map (continued)Absoluteaddress(hex)Register name Width(in bits) Access Reset value Section/page4000_D81C Region Descriptor Alternate Access Control n(MPU_RGDAAC7) 32 R/W 0000_0000h 18.3.8/3774000_D820 Region Descriptor Alternate Access Control n(MPU_RGDAAC8) 32 R/W 0000_0000h 18.3.8/3774000_D824 Region Descriptor Alternate Access Control n(MPU_RGDAAC9) 32 R/W 0000_0000h 18.3.8/3774000_D828 Region Descriptor Alternate Access Control n(MPU_RGDAAC10) 32 R/W 0000_0000h 18.3.8/3774000_D82C Region Descriptor Alternate Access Control n(MPU_RGDAAC11) 32 R/W 0000_0000h 18.3.8/37718.3.1 Control/Error Status Register (MPU_CESR)Address: MPU_CESR is 4000_D000h base + 0h offset = 4000_D000hBit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0R SPERR 0 1 0 HRL NSP NRGD 0VLDW w1cReset 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 1MPU_CESR field descriptionsField Description31–27SPERRSlave port n errorIndicates a captured error in EARn and EDRn. This bit is set when the hardware detects an error andrecords the faulting address and attributes. It is cleared by writing one to it. If another error is captured atthe exact same cycle as the write, the flag remains set. A find-first-one instruction (or equivalent) candetect the presence of a captured error.The following shows the correspondence between the bit number and slave port number:• Bit 31 corresponds to slave port 0.• Bit 30 corresponds to slave port 1.• Bit 29 corresponds to slave port 2.• Bit 28 corresponds to slave port 3.• Bit 27 corresponds to slave port 4.0 No error has occurred for slave port n.1 An error has occurred for slave port n.26–24ReservedThis read-only field is reserved and always has the value zero.23ReservedThis read-only field is reserved and always has the value one.Table continues on the next page...Memory Map/Register DefinitionK51 Sub-Family Reference Manual, Rev. 6, Nov 2011368 Freescale Semiconductor, Inc.