I am trying to understand Fig 21.13 of the users guide. In particular I am using a timer that goes off every half second. I would like to take a sequence of channel readings (from A4 - A0). The source for ADCSHS is TB1.1. I am in pulse mode. My understanding is that when TB1.1 goes off this will generate SHI (figure 21.7). This in turn will create a SAMPCON based on time I put into a register. My questions are:
1. In 21.13 I am using the rising edge of TB1.1 to go from state Wait for Trigger to state Sample Input Channel X. The return path for the other channels is MSC and SHP = 1. My question is how does SAMPCON have a falling edge after the first sample has been taken. when I travel the path (MSC = SHP = 1) given that I do not have another rising edge until a half second later? (falling edge is shown in fig after state Sample Input Channel).
2. The second question is if SHT is set to 8 clocks and assuming I only need the 1st edge of SHI to trigger all (see above #1) is the math : 1 syn + 5 channels * ( 8 sample + 14 convert + 1) = 116 clocks total to do the 5 channels?
Thanks