NXP Semiconductors KE1xF Series, Reference Manual, Page: 90 / 1483

Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
Reserved
CBR
R
Reserved
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MCM_CPCR field descriptions
Field Description
31
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
30
SRAMLWP
SRAM_L Write Protect
When this bit is set, writes to SRAM_L array generates a bus error.
29–28
SRAMLAP
SRAM_L arbitration priority
Defines the arbitration scheme and priority for the processor and SRAM backdoor accesses to the
SRAM_L array.
00 Round robin
01 Special round robin (favors SRAM backdoor accesses over the processor)
10 Fixed priority. Processor has highest, backdoor has lowest
11 Fixed priority. Backdoor has highest, processor has lowest
27
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
26
SRAMUWP
SRAM_U write protect
When this bit is set, writes to SRAM_U array generates a bus error.
25–24
SRAMUAP
SRAM_U arbitration priority
Defines the arbitration scheme and priority for the processor and SRAM backdoor accesses to the
SRAM_U array.
00 Round robin
01 Special round robin (favors SRAM backdoor accesses over the processor)
10 Fixed priority. Processor has highest, backdoor has lowest
11 Fixed priority. Backdoor has highest, processor has lowest
23–10
Reserved
This field is reserved.
9
CBRR
Crossbar round-robin arbitration enable
Configures the crossbar slave ports to fixed-priority or round-robin arbitration.
0 Fixed-priority arbitration
1 Round-robin arbitration
Reserved This field is reserved.
Memory map/register descriptions
Kinetis KE1xF Sub-Family Reference Manual, Rev. 4, 06/2019
90 NXP Semiconductors