Information
• PACRA- P define the access levels for the 128 peripherals
The peripheral assignments to each PACR are defined by the memory map slot that the
peripherals are assigned. See the device's memory map details for the assignments for a
particular device.
NOTE
The reset value of the PACRE- P depends on the device's
configuration.
Address: Base address + 40h offset + (4d × i), where i=0d to 11d
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
0
SP0 WP0 TP0
0
SP1 WP1 TP1
0
SP2 WP2 TP2
0
SP3 WP3 TP3
W
Reset
x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
SP4 WP4 TP4
0
SP5 WP5 TP5
0
SP6 WP6 TP6
0
SP7 WP7 TP7
W
Reset
x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
* Notes:
x = Undefined at reset.•
AIPSx_PACRn field descriptions
Field Description
31
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
30
SP0
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.
29
WP0
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.
28
TP0
Trusted protect
Determines whether the peripheral allows accesses from an untrusted master. When this bit is set and an
access is attempted by an untrusted master, the access terminates with an error response and no
peripheral access initiates .
Table continues on the next page...
Memory map/register definition
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
374
Preliminary
Freescale Semiconductor, Inc.
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