Notes On Use Of The Ppg Timer - Fujitsu FR60 Hardware Manual

7.8

Notes on Use of the PPG Timer

This section gives notes on using the PPG timer.
■ Precautions when Using
• If the interrupt request flag set timing and clear timing are simultaneous, the flag setting
operation overrides the flag clearing operation.
• The values in bit11 and bit10 in the PPG control register (the CKS1 and CKS0 count lock
select bits) are reflected as soon as they are written. Stop the PPG timer counting when
updating their setting.
• The PPG down counter (PPGC: 16-bit down counter) prefers loading to counting if they are
wanted simultaneously.
CHAPTER 7 PPG TIMER
305