Information

AIPSx_PACRn field descriptions (continued)
Field Description
0 This peripheral does not require supervisor privilege level for accesses.
1 This peripheral requires supervisor privilege level for accesses.
5
WP6
Write Protect
Determines whether the peripheral allows write accessses. When this field is set and a write access is
attempted, access terminates with an error response and no peripheral access initiates .
0 This peripheral allows write accesses.
1 This peripheral is write protected.
4
TP6
Trusted Protect
Determines whether the peripheral allows accesses from an untrusted master. When this field is set and
an access is attempted by an untrusted master, the access terminates with an error response and no
peripheral access initiates.
0 Accesses from an untrusted master are allowed.
1 Accesses from an untrusted master are not allowed.
3
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
2
SP7
Supervisor Protect
Determines 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 MPR x [MPL n ] control
field for the master must be set. If not, access terminates with an error response and no peripheral access
initiates .
0 This peripheral does not require supervisor privilege level for accesses.
1 This peripheral requires supervisor privilege level for accesses.
1
WP7
Write Protect
Determines whether the peripheral allows write accessses. When this field is set and a write access is
attempted, access terminates with an error response and no peripheral access initiates .
0 This peripheral allows write accesses.
1 This peripheral is write protected.
0
TP7
Trusted Protect
Determines whether the peripheral allows accesses from an untrusted master. When this field is set and
an access is attempted by an untrusted master, the access terminates with an error response and no
peripheral access initiates .
0 Accesses from an untrusted master are allowed.
1 Accesses from an untrusted master are not allowed.
19.2.3 Peripheral Access Control Register (AIPSx_PACRn)
Each of the peripherals has a 4-bit PACR[0: 127 ] field which defines the access levels
supported by this module. Eight PACR fields are grouped together to form a 32-bit
PACR[A: P ]:
Chapter 19 Peripheral Bridge (AIPS-Lite)
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
Freescale Semiconductor, Inc.
Preliminary
373
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