Information

FB_CSPMCR field descriptions (continued)
Field Description
23–20
GROUP3
FlexBus signal group 3 multiplex control
Controls the multiplexing of the FB_CS5, FB_TSIZ1, and FB_BE_23_16 signals.
0000 FB_CS5
0001 FB_TSIZ1
0010 FB_BE_23_16
Else Reserved
19–16
GROUP4
FlexBus signal group 4 multiplex control
Controls the multiplexing of the FB_TBST, FB_CS2, and FB_BE_15_8 signals.
0000 FB_TBST
0001 FB_CS2
0010 FB_BE_15_8
Else Reserved
15–12
GROUP5
FlexBus signal group 5 multiplex control
Controls the multiplexing of the FB_TA, FB_CS3, and FB_BE_7_0 signals.
NOTE: When GROUP5 is not 0000, you must set the CSCRn[AA] bit. Else, the bus hangs during a
transfer.
0000 FB_TA
0001 FB_CS3. You must also set CSCRn[AA].
0010 FB_BE_7_0. You must also set CSCRn[AA].
Else Reserved
11–0
Reserved
This read-only field is reserved and always has the value zero.
29.4 Functional Description
This section provides the functional description of the module.
29.4.1 Chip-Select Operation
Each chip-select has a dedicated set of registers for configuration and control:
• Chip-select address registers (CSARn) control the base address space of the chip-
select.
Functional Description
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
690 Freescale Semiconductor, Inc.