Fujitsu F2MC-8L Series Hardware Manual page 304

"H" width
The output level is "H" when the value set for the "H" width is equal to or greater than the value
set for the cycle.
Tip:
In case of selecting 1/8/32 t
"H" width of the waveform output by the remote-control transmission frequency generator.
When the count clock cycle is set to 1 t
MHz, assuming:
Value compared for cycle = "011110
Value compared for "H" width = "001010
the "H" width and cycle of the output waveform is obtained as shown below.
Cycle
"H" width
The output level is "H" when the value set for the "H" width is equal to or greater than the value
set for the cycle.
6-bit PPG Functions(In case of selecting 0.5 t
The remote-control transmission frequency generator can serve as a 6-bit PPG without
modification because the cycle and "H" width of the output waveform can be set independently.
The duty ratio width which control is possible is from 1.56% to 100%. Note,the smaller value
compared for cycle results in the lower resolution (the greater minimum step width of the duty
ratio)
The output frequency and duty ratio are obtained from the following equations:
Output cycle
13.1 Overview of Remote-control Transmission Frequency Generator
= "011110 " (30 + 1 -clock cycle) × 0.5 × 4/F
B
= 31 × 0.475 µs
= 14.725 µs
= (Value compared for "H" width + 1) × 0.5 t
= "001010 " (10 + 1 -clock width ) × 0.5 × 4/F
B
= 11 × 0.475 µs
= 5.225 µs
,the following gives an example of calculating the cycle and
inst
inst
" (30-clock cycle)
B
B
= (Value compared for cycle) × (count clock cycle)
= "011110 " (30 -clock cycle) × 1 × 4/F
B
= 30 × 0.95 µs
= 28.6 µs
= (Value compared for "H" width) × (count clock cycle)
= "001010 " (10 -clock width ) × 1 × 4/F
B
= 10 × 0.95 µs
= 9.5 µs
)
inst
= (value compared for cycle +1) × 0.5 t
C
inst
C
for operation at a main clock oscillation (F
" (10-clock width)
C
C
inst
) of 4.2
C
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