Fujitsu MB91260B Series Hardware Manual page 170

[bit9, bit8, bit7] MOD2, MOD1, MOD0 (Mode)
These bits select the operation mode. The function is changed when the count source is "internal clock" or
"external trigger".
• When internal clock mode: reload trigger setting
• When external trigger mode: count effective edge setting
Be sure to set MOD2 bit to "0".
[Reload trigger setting at internal clock selection]
When the internal clock is selected as the count source, it loads the content of reload registers and continues
the count operation after the effective edge is inputted by setting MOD2 to MOD0 bits.
MOD2 MOD1
0 0
0 0
0 1
0 1
1 X
[Effective edge setting at external trigger selection]
When the external clock event is selected as the count source, it counts effective edge of the external trigger
by setting of MOD2 to MOD0 bits.
MOD2 MOD1 MOD0
X 0
X 0
X 1
X 1
X X
When external trigger is selected, the reload is generated by software trigger and underflow.
[bit6] This bit is unused.
The read value is always "0".
[bit5] OUTL
This bit sets external timer output level. The output level is opposite when this bit is"0" and "1".
MOD0
0 Software trigger (initial value)
1 External trigger (rising edge)
0 External trigger (falling edge)
1 External trigger (both edges)
X Setting prohibited
0
1 External trigger (rising edge)
0 External trigger (falling edge)
1 External trigger (both edges)
X Setting prohibited
CHAPTER 8 16-BIT RELOAD TIMER
Effective edge
Effective edge
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