Fujitsu MB91460 SERIES FR60 User Manual page 848

Chapter 40 Pulse Frequency Modulator
3.Reload Counter Operation
● Counter state transitions
Reset
WAIT
Counter: Stores the value when
832
STOP
Counter: Stores the value when
CNTE= "0"
CNTE= "1"
TRG= "0"
CNTE= "1", WAIT="1"
counting stopped.
Indeterminate after a reset
until loaded.
TRG= "1"
LOAD
Load contents of the reload
register to the counter.
Figure 3-3 Counter State Transitions
CNTE= "0", WAIT= "1"
counting stopped.
Indeterminate after a reset.
CNTE= "1"
TRG= "1"
RUN
•
RELD UF
TRG= "1"
CNTE= "1", WAIT= "0"
State transitions by hardware
State transitions by register access
CNTE= "0"
CNTE= "1", WAIT= "0"
Counter: Running
•
RELD UF
Load complete