When One-Shot Position Detection And Reload Timer Underflow - Fujitsu 8FX Hardware Manual

MB95630H Series
21.5.4.7 When One-shot Position Detection and Reload
Timer Underflow
The output timing change of the operation of the one-shot position detection
and reload timer underflow is shown in Figure 21.5-23.

■ When One-shot Position Detection and Reload Timer Underflow

The operation of one-shot position detection and reload timer underflow is the same as that of
the position detection and reload timer underflow, except that after the first valid position is
detected, no further position detection is recognized until the operation mode is changed from
one-shot position detection and reload timer underflow to another operation mode. The OPTx
output waveform is shown in Figure 21.5-23.
In order to use this method, use the 16-bit reload timer in one-shot mode. TIN0O must be
longer than two machine cycles.
■ Timing Generated by One-shot Position Detection and Reload Timer
Underflow (OPS[2:0] = 0b111)
Figure 21.5-23 Timing Generated by One-shot Position Detection and Reload Timer Underflow
SNI2
SNI0
TIN0O
(TIN)
Reload
timer
counter
action
RDA[2:0]
(OPDUR)
WTIN0
(TOUT)
WTO
OP0[1:0]
(OPDLR)
PPG
OPT0
OPS[2:0]
MN702-00009-2v0-E
(OPS[2:0] = 0b111)
0b100 0b110
0b00
0b01
0b111
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER 21 MULTI-PULSE GENERATOR
0b11
0b011
21.5 Operations
415