Toshiba TMP91C815F Data Book page 237

Example: Waveform of alarm pattern for each setting value : not invert)
AL1 pattern
(Continuous output)
1
AL2 pattern
(8 times/1sec)
31.25ms
AL3 pattern
(once)
1
AL4 pattern
(Twice/1sec)
62.5ms
1
AL5 pattern
(3 times/1sec)
62.5ms
1
AL6 pattern
(once)
62.5ms
1
AL7 pattern
(Twice)
62.5ms
AL8 pattern
(once)
Modulation frequency(4096Hz)
2
8
1sec
1
500ms
2
1sec
2 3
1sec
2
250ms
91C815-
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TMP91C815
1
1
1