rtd DM6210, Руководство пользователя

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7-4
Mode 3, Square Wave Mode. Similar to Mode 2 except for the duty cycle output, this mode is typically
used for baud rate generation. The output is initially high, and when the count decrements to one-half its
initial count, the output goes low for the remainder of the count. The timer/counter reloads and the output
goes high again. This process repeats indefinitely.
Mode 4, Software-Triggered Strobe. The output is initially high. When the initial count expires, the
output goes low for one clock pulse and then goes high again. Counting is “triggered” by writing the initial
count.
Mode 5, Hardware Triggered Strobe (Retriggerable). The output is initially high. Counting is triggered
by the rising edge of the gate input. When the initial count has expired, the output goes low for one clock
pulse and then goes high again.