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McSPI Register Manual
Bits
Field Name
Description
Type
Reset
0x1:
Interface clock is maintained. Functional clock may be
switched off.
0x2:
Functional clock is maintained. Interface clock may be
switched off.
0x3:
Interface and Functional clocks are maintained.
7:5
Reserved
Reads returns 0
RW
0x0
4:3
SIDLEMODE
Power management
RW
0x0
0x0:
If an idle request is detected, the McSPI acknowledges
it unconditionally and goes in Inactive mode. Interrupt,
DMA requests and wake up lines are unconditionally
de-asserted and the module wake-up capability is
deactivated even if the bit
ENAWAKEUP] is set.
0x1:
If an idle request is detected, the request is ignored and
the module does not switch to wake up mode and
keeps on behaving normally.
0x2:
If an idle request is detected, the module will switch to
wake up mode based on its internal activity and the
wake up capability can be used if the bit
[ENAWAKEUP] is set.
0x3:
Reserved - do not use.
2
ENAWAKEUP
Wake-up feature control
RW
0
0x0:
Wake-up capability disabled
0x1:
Wake-up capability enabled
1
SOFTRESET
Software reset. Read always returns 0.
RW
0
0x0:
Normal mode.
0x1:
Trigger a module reset. This bit is automatically reset by
hardware.
0
AUTOIDLE
Internal interface Clock gating strategy
RW
0
0x0:
interface clock is free-running
0x1:
Automatic interface clock gating strategy is applied,
based on the module interface activity
Table 20-23. Register Call Summary for Register MCSPI_SYSCONFIG
McSPI Integration
•
McSPI Functional Description
•
•
:
McSPI Basic Programming Model
•
McSPI Configuration and Operations Example
McSPI Register Manual
•
•
3035
SWPU177N – December 2009 – Revised November 2010
Multichannel SPI
Copyright © 2009–2010, Texas Instruments Incorporated