Fujitsu 8FX Hardware Manual page 388

CHAPTER 20 16-BIT RELOAD TIMER
20.6 Operations and Setting Procedure Example
● External trigger input
The count starts when the count enable bit (CNTE) is "1" and the valid edge of trigger input
(rising, falling, or both edges) specified by the operating mode select bits (MOD[2:0]) is input
to the TIn pin.
Figure 20.6-7 shows the external trigger input operation in one-shot mode.
Figure 20.6-7 Count Operation in One-shot Mode (External Trigger Input Operation)
Count clock
Counter
Data load signal
UF bit
CNTE bit
TIn pin
TOn pin
● Gate input operation
The count starts when the count enable bit (CNTE) is "1" and the software trigger bit (TRG) is
also set to "1".
The timer continues counting as long as the trigger input enable level ("L" or "H" selectable)
specified by the operating mode select bits (MOD[2:0]) is input to the TIn pin.
Figure 20.6-8 shows the external gate input operation in one-shot mode.
Figure 20.6-8 Count Operation in One-shot Mode (External Gate Input Operation)
Count clock
Counter
Data load signal
UF bit
CNTE bit
TRG bit
TIn pin
TOn pin
366
-1
0000 FFFF
Reload data
Wait for start trigger input
-1
0000 FFFF
Reload data
Wait for start trigger input
FUJITSU SEMICONDUCTOR LIMITED
MB95630H Series
-1
0000 FFFF
Reload data
-1 -1
Reload data
MN702-00009-2v0-E