MOTOROLA 41

TE
TCR
periodic event (first event)
Clock
N
Counter NN+1 N+2
Interrupt
TIO
periodic event
M-1
M
M M+1 M+2
N+1

Figure 16 - Period Measurement Mode (INV=0)

TIO

Figure 17 - Period Measurement Mode (INV=1)

TE
TCR
periodic event (first event)
Clock
N
Counter NN+1 N+2
Interrupt
periodic event
M-1
M
M M+1 M+2
N+1