Table 13.1-3 Resolutions And Output Cycles Of 6-Bit Ppg - Fujitsu F2MC-8L Series Hardware Manual

t :
inst
*:
6-bit PPG Functions(In case of selecting 1/8/32 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.
Note, however, that since the effective range of values compared for "H" width is from "0" (duty
ratio of 0%) to the value compared for cycle (duty ratio of 100%), the smaller value compared
for cycle results in the lower resolution (the greater minimum step width of the duty ratio).
When the value compared for cycle is "2", for example, the acceptable value compared for "H"
width is "0", "1", or "2", resulting in a resolution of it 1/3. In this case, the duty ratio is 0%, 50%,
or 100%, respectively, and the minimum step of it is 50%.
The output frequency and duty ratio are obtained from the following equations:
Output cycle
Duty ratio
Table 13.1-2 lists the resolutions, duty ratio minimum steps, and output cycles that can be set.

Table 13.1-3 Resolutions and Output Cycles of 6-bit PPG

Value Setting range
compared of values for
for cycle "H" width
0 0
1 0 to 1
2 0 to 2
3 0 to 3
4 0 to 4
5 0 to 5
6 0 to 6
7 0 to 7
8 0 to 8
9 0 to 9
10 0 to 10
15 0 to 15
13.1 Overview of Remote-control Transmission Frequency Generator
Instruction cycle
When the value set for "H" width is equal to the value set for the cycle, the output
level is always "H."
= value compared for cycle × selected count clock cycle
= value compared for "H" width/value compared for cycle x 100(%)
Output cycle
Count clock Count clock
= 8 t
= 1 t
inst
2 t
inst
3 t
inst
4 t
inst
5 t
inst
6 t
inst
7 t
inst
8 t
inst
9 t
inst
10 t
inst
15 t
inst
)
inst
Count clock
= 32 t
inst inst
Disabled
Disabled
16 t 64 t
inst inst
24 t 96 t
inst inst
32 t 128 t
inst inst
40 t 160 t
inst inst
48 t 192 t
inst inst
56 t 224 t
inst inst
64 t 256 t
inst inst
72 t 288 t
inst inst
80 t 320 t
inst inst
:
120 t 480 t
inst inst
:
Duty ratio
Resolution
minimum step
Output "H"
Output "H"
1/2 50.0 %
1/3 33.3 %
1/4 25.0 %
1/5 20.0 %
1/6 16.7 %
1/7 14.3 %
1/8 12.5 %
1/9 11.1 %
1/10 10.0 %
1/15 6.7 %
279