STMicroelectronics SPC572L series Reference Manual page 312

Crossbar Switch (XBAR)
Field
12
This read-only bit is reserved and always has the value zero.
Reserved
Master 4 priority. Sets the arbitration priority for this port on the associated slave port:
000 This master has level 1 (highest) priority when accessing the slave port.
001 This master has level 2 priority when accessing the slave port.
010 This master has level 3 priority when accessing the slave port.
13–15
011 This master has level 4 priority when accessing the slave port.
M4
100 This master has level 5 priority when accessing the slave port.
101 This master has level 6 priority when accessing the slave port.
110 This master has level 7 priority when accessing the slave port.
111 This master has level 8 (lowest) priority when accessing the slave port.
16
This read-only bit is reserved and always has the value zero.
Reserved
Master 3 priority. Sets the arbitration priority for this port on the associated slave port:
000 This master has level 1 (highest) priority when accessing the slave port.
001 This master has level 2 priority when accessing the slave port.
010 This master has level 3 priority when accessing the slave port.
17–19
011 This master has level 4 priority when accessing the slave port.
M3
100 This master has level 5 priority when accessing the slave port.
101 This master has level 6 priority when accessing the slave port.
110 This master has level 7 priority when accessing the slave port.
111 This master has level 8 (lowest) priority when accessing the slave port.
20
This read-only bit is reserved and always has the value zero.
Reserved
Master 2 priority. Sets the arbitration priority for this port on the associated slave port:
000 This master has level 1 (highest) priority when accessing the slave port.
001 This master has level 2 priority when accessing the slave port.
010 This master has level 3 priority when accessing the slave port.
21–23
011 This master has level 4 priority when accessing the slave port.
M2
100 This master has level 5 priority when accessing the slave port.
101 This master has level 6 priority when accessing the slave port.
110 This master has level 7 priority when accessing the slave port.
111 This master has level 8 (lowest) priority when accessing the slave port.
24
This read-only bit is reserved and always has the value zero.
Reserved
Master 1 priority. Sets the arbitration priority for this port on the associated slave port:
000 This master has level 1 (highest) priority when accessing the slave port.
001 This master has level 2 priority when accessing the slave port.
010 This master has level 3 priority when accessing the slave port.
25–27
011 This master has level 4 priority when accessing the slave port.
M1
100 This master has level 5 priority when accessing the slave port.
101 This master has level 6 priority when accessing the slave port.
110 This master has level 7 priority when accessing the slave port.
111 This master has level 8 (lowest) priority when accessing the slave port.
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Table 133. XBAR_PRSn field descriptions(Continued)
DocID027809 Rev 4
Description
RM0400