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CCS/TM4C123GH6PM: Quadrature Encoder Question regarding interrupts

Part Number: TM4C123GH6PM

Tool/software: Code Composer Studio

Is it possible to interrupt on rollover of the QEIPOS bit, I would like to keep absolute position of the encoder counts well past 1 revolution and I am wondering if I can interrupt on the rollover of the QEIPOS

I don't currently have an index pulse but I am looking into getting one and then using the index interrupt. 

I am reading MAXPOS as a 32bit register yet I can only seem to get a 16bit value as my max position before resetting.


also I am sure someone has pointed this out before but I think there is a typo on the silkscreen of the tm4c123gh6pm launchpad. PE0 is written as P30


Thanks