Panasonic MN101C77C, F77G bit Timer Synchronous Output, Synchronous Output Port Timer 1, Timer

Chapter 6 8-bit Timers

6-7 8-bit Timer Synchronous Output

6-7-1 Operation

When the binary counter of the timer reaches the set value of the compare register, the latched data is output from port 6 at the next count clock.

„Synchronous Output Operation by 8-bit timer (Timer 1, Timer 5)

The port 6 latched data is output from the output pin at the interrupt request generation by the match of the binary counter and the compare register.

Only port 6 can perform synchronous output operation, and individual pins can be set. 8-bit timers that have synchronous output operation are timer 1 and timer 5.

Table 6-7-1 Synchronous Output Port (Timer 1, Timer 5)

	Timer 1	Timer 5
Synchronous
output port	Port 6	Port 6

„Count Timing of Synchronous Output (Timer 1, Timer 5)

Count clock

TMnEN flag

Compare

N

register 1

Port 6 output	X	Y	Z	X	Y
latch data
Binary	N-1 N	00 01	N-1 N	00 01	N-1 N 00 01	N-1
counter
Interrupt
request flag
Port 6	X		Y		Z	Y
synchronous

output data

Figure 6-7-1 Count Timing of Synchronous Output (Timer 1, Timer5)

The port 6 latched data is output from the output pin in synchronization with the interrupt request generation by the match of binary counter and compare register.

VI - 30 Synchronous Output