Operation Of The Ppg Timer - Fujitsu FR60 Hardware Manual

CHAPTER 8 PROGRAMMABLE PULSE GENERATOR (PPG) TIMER
8.3

Operation of the PPG Timer

This section describes the PPG timer operation.
■ Precautions
If the device attempts to set and clear the interrupt request flag at the same time, the flag is set and the clear
operation becomes ineffective.
The settings of bits 11 and 10 (count clock select bits CKS1 and CKS0) of the PPG control register are
reflected immediately after data is written to the bits. Change the settings of the bits when counting stops.
If the device attempts to load and count the PPG down counter (PPGC: 16-bit down counter) at the same
time, the load operation takes precedence.
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