Fujitsu FR81S User Manual
CHAPTER 25: 16-BIT OUTPUT COMPARE
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 16-BIT OUTPUT COMPARE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
25
Output level when the compare buffer is invalid
Figure 5-5 Example of Output Waveform When the Compare Buffer Is Invalid
(With the free-run timer in up count mode)
FFFF
H
BFFF
H
7FFF
H
3FFF
H
0000
H
Count value
Time
Compare buffer
register 0
BFFF
H
Compare register 0
Compare output 0
Compare 0 interrupt
3FFF
H
BFFF
H
BFFF
H
3FFF
H
BFFF
H
Timer operation start
Compare clear match
Compare clear match
⋅
For ch.1,2,3,4 and 5, the operation is the same as ch.0.
Output level when the compare buffer is selected upon a compare clear
match
Figure 5-6 Example of Output Waveform When the Compare Buffer Is Valid
(With the free-run timer in up/down count mode)
FFFF
H
BFFF
H
7FFF
H
3FFF
H
0000
H
Count value
Time
Compare buffer
register 0
BFFF
H
Compare register 0
Compare output 0
Compare 0 interrupt
3FFF
H
BFFF
H
BFFF
H
3FFF
H
BFFF
H
Timer operation start
Compare clear match
Compare clear match
0 detection
⋅
For ch.1,2,3,4 and 5, the operation is the same as ch.0.
MB91520 Series
MN705-00010-1v0-E
980