Overview Of 16-Bit Reload Timer - Fujitsu F2MC-16LX Hardware Manual

CHAPTER 16 16-BIT RELOAD TIMER
16.1

Overview of 16-bit Reload Timer

The 16-bit reload timer provides two functions either one of which can be selected, the
internal clock that performs the count down by synchronizing with 3-type internal
clocks and the event count mode that performs the count down by detecting the arbiter
edge of pulses input to the external terminal.
Overview of 16-bit Reload Timer
Underflow of the 16-bit reload timer is defined as a case when the count value becomes from 0000
FFFF . Therefore, when the equation (reload register setting value + 1) holds, an underflow occurs. Either
H
mode can be selected for the count operation from the reload mode which repeats the count by reloading
the count setting value at the underflow occurrence or the one-shot mode which stops the count at the
underflow occurrence. The interrupt can be generated at the counter underflow occurrence so as to
correspond to the DTC.
384
to
H