
Crossbar Switch (XBS)
Freescale Semiconductor
12-5
NOTE
The possible values for the XBS_PRS
n
fields depend on the number of
masters available on the device. Because the device contains seven masters
(including reserved masters), valid values are 000 to 110. Unpredictable
results occur when using the reserved setting of 111.
12.4.2
XBS Control Registers (XBS_CRSn)
The XBS control registers (XBS_CRS
n
) control several features of each slave port and must be accessed
using 32-bit accesses. After XBS_CRS
n
[RO] is set, the XBS_CRS
n
can only be read; attempts to write to
it have no effect and result in an error response.
23
Reserved, must be cleared.
22–20
M5
Master 5 (USB Host) priority. See M7 description.
19
Reserved, must be cleared.
18–16
M4
Master 4 (LCD Controller) priority. See M7 description.
15–11
Reserved, must be cleared.
10–8
M2
Master 2 (FEC) priority. See M7 description.
7
Reserved, must be cleared.
6–4
M1
Master 1 (eDMA) priority. See M7 description.
3
Reserved, must be cleared.
2–0
M0
Master 0 (ColdFire core) priority. See M7 description.
Address: 0xFC00_4110 (XBS_PRS1)
0xFC00_4410 (XBS_PRS4)
0xFC00_4610 (XBS_PRS6)
0xFC00_4710 (XBS_PRS7)
Access: Supervisor read/write
31
30
29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
R
RO
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ARB
0 0
PCTL
0
PARK
W
Reset
0
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
0 0 0
0 0 0 0 0
1
After this bit is set, only a hardware reset clears it.
Figure 12-3. XBS Control Registers Slave n (XBS_CRSn)
Table 12-3. XBS_PRSn Field Descriptions (continued)
Field
Description
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...