Output Pin Functions; Intelligent I/O Service (I2Os) Function And Interrupts; Figure 15.4.5A Output Pin Functions (1); Figure 15.4.5B Output Pin Functions (2) - Fujitsu F2MC-16LX MB90580 Series Hardware Manual

15.4.5 Output pin functions

In reload mode, the TOUT pin performs toggle output (inverts at each underflow). In one-shot mode, the
TOUT pin functions as a pulse output that outputs a particular level while the count is in progress. The
OUTL bit of the control register sets the output polarity. When OUTL = "0", the initial value for toggle output
is "0" and the one-shot pulse output is "1" while the count is in progress. The output waveforms are oppo-
site when OUTL = "1".
Underflow
TOUT
CNTE
Trigger
Underflow
TOUT
CNTE
Trigger
15.4.6 Intelligent I/O service (I
The timer includes a circuit that supports I
2
I OS can be used with both timers on this product. However, as both timers (ch0 and ch1) are connected
to the same interrupt control register (ICRx) in the interrupt controller, ch0 and ch1 cannot be assigned to
2
different I OS services. Also, as the two timers have different interrupt vectors, they can be assigned to
two different interrupt services. However, as ch0 and ch1 share an interrupt control register as described
above, the same interrupt level applies to both channels.
MB90580 Series
Count start
General-purpose port
[RELD=1, OUTL=0]

Figure 15.4.5a Output Pin Functions (1)

Level is opposite
when OUTL = "1".
General-purpose port
[RELD=0, OUTL=0]

Figure 15.4.5b Output Pin Functions (2)

2
OS) function and interrupts
2
OS. The timer can activate I
Chapter 15: 16-Bit Reload Timer (with Event Count Function)
Level is opposite
when OUTL = "1".
Waiting for a trigger
2
OS when an underflow occurs.
15.4 Operation
217