Panasonic F77G, MN101C77C user manual bit Timer Pulse Output, Timer Pulse Output Pins

Chapter 6 8-bit Timers

6-5 8-bit Timer Pulse Output

6-5-1 Operation

The TMnIO pin can output a pulse signal with any cycle.

„Operation of Timer Pulse Output (Timers 0, 1, 4 and 5)

The timers can output 2 x cycle signal, compared to the setting value in compare register (TMnOC). Output pins are as follows ;

Table 6-5-1 Timer Pulse Output Pins

	Timer 0	Timer 1	Timer 4	Timer 5
Pulse output pin	TM0IO output	TM1IO output	TM4IO output	TM5IO output
	( P10, P11 )	( P76 )	( P12, P13 )	( P77 )

„Count Timing of Timer Pulse Output (Timers 0, 1, 4 and 5)

Count clock

TMnEN flag

Compare

register

N

Binary	00 01	N-1 N 00 01	N-1 N 00 01	N-1 N 00
counter

Interrupt request flag

TMnIO output

Figure 6-5-1 Count Timing of Timer Pulse Output (Timers 0, 1, 4 and 5)

The TMnIO pin outputs 2 x cycle, compared to the value in the compare register. If the binary counter reaches the compare register, and the binary counter is cleared to x'00', TMnIO output is inverted. The inversion of the timer output is changed at the rising edge of the count clock. This is happened to form waveform inside to correct the output cycle.

8-bit Timer Pulse Output VI - 23