Function Callability Table
A-2
A.1
Function Callability Table
The following table indicates what types of threads can call each of the
DSP/BIOS functions. The Possible Context Switch column indicates
whether another thread may be run as a result of this function. For
example, the function may block on a resource or it may make another
thread ready to run. The Possible Context Switch column does not
indicate whether the function disables interrupts that might schedule
higher-priority threads.
Table A-1 Function Callability
Function
Callable
by TSKs?
Callable
by SWIs?
Callable by
HWIs?
Possible
Context
Switch?
Callable
from
main()?
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
No
Yes
C55_disableIER0,
C55_disableIER1
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
C55_enableIER0,
C55_enableIER1
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
No
Yes*
No
No