Fujitsu MB90335 Series Hardware Manual page 354

MB90335 Series
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Operation of gate input
When "1" is set to the count permission bit (CNTE) of timer control status register (TMCSR0) and "1" is
set to the software trigger bit (TRG), the count operation is started.
While a valid level ("L" or "H" can be set) of gate input, which is, set in the operation mode-setting bit
(MOD2, MOD1, and MOD0) is being input to the TIN0 pin, the count operation is performed.
Figure 14.3-6 Count Operation in the Reload Mode (Software Trigger Operation)
Count clock
Counter
Data load
signal
UF bit
CNTE bit
TRG bit
T*
TIN0 pin
TOT0 pin
T: Machine cycle
*: It takes 1T time from trigger input to loading of reload data.
Note:
Input a trigger pulse of which width is 2/φ or more to the TIN0 pin.
CM44-10137-6E
−1 −1 −1
Reload data
FUJITSU MICROELECTRONICS LIMITED
CHAPTER 14 16-BIT RELOAD TIMER
14.3 Movement of 16-bit Reload Timer
−1 −1
Reload
0000
H
data
333