
11. PPG (Programmable Pulse Generator)
MC97F6108A User’s manual
102
11.7
PPG period limitation
PPG max period is determined by the PPGPXH/PPGPXL. After duty matching, period comparation is
enabled until period matching. If PPG counter value and PPGPXH/PPGPXL matches before PPG
counter value and PPGPH/PPGPL matches, the counter is cleared and waits for the start signal.
DUTY
PPGO
PERIOD
0 1 2 ... A
0 1 2 ... A B
0 1 2 ... A B C
0 1 2 ... A B C
PPGH, PPGL
PPGPXH, PPGPXL
0 1 2
PPGPH, PPGPL
DUTY
DUTY
DUTY
DUTY
PERIOD
PERIOD
PERIOD
start pulse
2
PPGDH, PPGDL
A
C
B
C
D
E
period compare register
A
B
C
C
C
Figure 41. PPG Period Limitation