Fujitsu MB91260B Series Hardware Manual page 290

• Free-run timer is in up/down count mode:
Free-run timer
count value
CFFF
H
BFFF
H
0000
H
Compare buffer
BFFF
H
register
Compare register
BFFF
H
RT initial value [0]
RT initial value [1]
Data-transfer timing of the compare buffer for output compare when the free-run timer has a compare-clear match:
Output compare output when up-count match is set to "1", down-count match is reset to "0"
• Free-run timer is in up/down count mode:
Free-run timer
count value
CFFF
H
BFFF
H
0000
H
Compare buffer
BFFF
H
register
Compare register
BFFF
H
RT initial value [0]
RT initial value [1]
Data-transfer timing of the compare buffer for output compare when the free-run timer has a zero detection:
Output compare output when up-count match is set to "1", down-count match is reset to "0"
CFFF BFFF
H H
BFFF CFFF
H H
CFFF BFFF
H
CFFF
H
CHAPTER 11 MULTIFUNCTIONAL TIMER
0000
H
BFFF
H
0000
H H
BFFF 0000
H H
Time
FFFF 0000
H H
0000 FFFF
H H
FFFF 0000
H H
FFFF
H
Time
0000
H
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