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McBSP Register Manual
Table 21-132. MCBSPLP_STATUS_REG
Address Offset
0x0000 00C0
Physical Address
0x4807 40C0
Instance
McBSP1
0x4809 60C0
McBSP5
0x4902 20C0
McBSP2
0x4902 40C0
McBSP3
0x4902 60C0
McBSP4
Description
McBSPLP status register.
Type
R
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
RESERVED
CLKMUXSTATUS
Bits
Field Name
Description
Type
Reset
31:1
RESERVED
Read returns 0x0.
R
0x00000000
0
CLKMUXSTATUS
When going to/exiting from idle mode, the clock for the
R
0x0
interface domain is switched between McBSP_ICLK and
master serial clock to allow functioning in idle mode. This
bit indicates that the status of clock switching and
accesses to the McBSP registers are delayed during
clock switching. To avoid such a situation, polling can be
performed to status register to evaluate when McBSPLP
is ready. This information is relevant only for the
McBSPLPoperating in slave mode (serial clock provided
by external component).
0: McBSP registers can be accessed.
1: The response to a different register access is delayed
until the muxing process is done. Only the
MCBSPLP_STATUS_REG[CLKMUXSTATUS] register
can be accessed under this condition. The McBSP
cannot exit from IDLE state (the external clock must be
restarted).
Table 21-133. Register Call Summary for Register MCBSPLP_STATUS_REG
McBSP Register Manual
•
McBSP Register Mapping Summary
:
21.6.4 SIDETONE Register Description
3203
SWPU177N – December 2009 – Revised November 2010
Multi-Channel Buffered Serial Port
Copyright © 2009–2010, Texas Instruments Incorporated