AIPS_PACRn field descriptions (continued)Field Description0 This peripheral allows write accesses.1 This peripheral is write protected.24TP1Trusted ProtectDetermines whether the peripheral allows accesses from an untrusted master. When this bit is set and anaccess is attempted by an untrusted master, the access terminates with an error response and noperipheral access initiates.0 Accesses from an untrusted master are allowed.1 Accesses from an untrusted master are not allowed.23ReservedThis field is reserved.This read-only field is reserved and always has the value 0.22SP2Supervisor ProtectDetermines whether the peripheral requires supervisor privilege level for accesses. When this field is set,the master privilege level must indicate the supervisor access attribute, and the MPRx[MPLn] control fieldfor the master must be set. If not, access terminates with an error response and no peripheral accessinitiates.0 This peripheral does not require supervisor privilege level for accesses.1 This peripheral requires supervisor privilege level for accesses.21WP2Write ProtectDetermines whether the peripheral allows write accesss. When this bit is set and a write access isattempted, access terminates with an error response and no peripheral access initiates.0 This peripheral allows write accesses.1 This peripheral is write protected.20TP2Trusted ProtectDetermines whether the peripheral allows accesses from an untrusted master. When this field is set andan access is attempted by an untrusted master, the access terminates with an error response and noperipheral access initiates.0 Accesses from an untrusted master are allowed.1 Accesses from an untrusted master are not allowed.19ReservedThis field is reserved.This read-only field is reserved and always has the value 0.18SP3Supervisor ProtectDetermines whether the peripheral requires supervisor privilege level for access. When this bit is set, themaster privilege level must indicate the supervisor access attribute, and the MPRx[MPLn] control bit forthe master must be set. If not, access terminates with an error response and no peripheral accessinitiates.0 This peripheral does not require supervisor privilege level for accesses.1 This peripheral requires supervisor privilege level for accesses.17WP3Write ProtectDetermines whether the peripheral allows write accesses. When this field is set and a write access isattempted, access terminates with an error response and no peripheral access initiates.Table continues on the next page...Memory map/register definitionKL27 Sub-Family Reference Manual , Rev. 5, 01/2016288 Freescale Semiconductor, Inc.