NEC PD78P214 Manuale Utente

210

µ

PD78214 Sub-Series

Count clock

TM3

CE3

n-1

n

0

0

1

When the CE3 bit is set to 1 after this count clock,

counting starts from 0 on the count clock input

after the CE3 bit has been set.

Count clock

TM3

CE3

n-1

When the CE3 bit is set to 1 before this count clock, Clearing

TM3 by CE3

←0 and counting by CE3←1 are performed simultaneously.

n

0

1

2

Eight-bit timer/counter 3 performs a compare operation to compare the value set in the compare register with a
timer count value.

When the value set in the compare register (CR30) coincides with a count value of 8-bit timer 3 (TM3), the interrupt
request (INTC30) is generated.

After the value of the CR30 register coincides with a count value of TM3, the value of TM3 is automatically cleared.
Thus, 8-bit timer/counter 3 can operate as an interval timer for repeatedly counting up to the value set in the CR30
register.