Introduction - If you have any usage issues, please Google them yourself
Description: Toggle P1.0 using software and Timer_A overflow ISR.
// In this example an ISR triggers when TA overflows. Inside the TA
// overflow ISR P1.0 is toggled. Toggle rate is approximatlely 12Hz.
// Proper use of the TAIV interrupt vector generator is demonstrated.
// ACLK = n/a, MCLK = SMCLK = TACLK = default DCO ~800kHz