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OMAP L138 64-bit timer in 32-bit mode

Dinesh Balasubramaniam
Intellectual 480 points

I need to use the timer on the OMAP L138 in 32-bit mode unchained mode.  The datasheet mentions two sources of interrupts for each of the 32-bit timers TIM12 and TIM34, T64P0 and T64P1.  

Here's the list of timer interrupts as show in the OMAP L138 datasheet.

T64P0_TINT12       Timer64P0 - TINT12
T64P1_TINT12      Timer64P1 Interrupt 12
T64P1_TINT34      Timer64P1 Interrupt 34
T64P0_TINT34      Timer64P0 Interrupt 34
T64P2_TINTALL   Timer64P2 Combined TINT12 and TINT 34 Interrupt

I've looked relevant sections in the TRM, datasheet, wiki and starterware code and have had much luck figuring if/how they differ.  Starterware code only uses the P0 and P2 interrupts. Are there specific cases where P0 interrupts are preferred over P1 interrupts?

I'd appreciate it if someone can point me to the relevant documentation that describes the differences.

Regards,

Dinesh