Fujitsu FR60 Hardware Manual page 319

Figure 8.1-3 shows a block diagram of one PPG timer channel.
Figure 8.1-3 Block Diagram of the PPG Timer (One Channel)
Prescaler
1/1
1/4
1/16
1/64
Peripheral clock
Enable
Edge
TRG input
detection
Software trigger
PCRS
CK Load
16-bit
down counter
Start Borrow
PDUT
cmp
PPG mask
S Q
R
Reverse bit
Interrupt
IRQ
select
PPG output
301