D.5 Mode D Waveforms
Rate Generator with No Hardware Gating
Mode D is typically used in frequency generation applications. In this mode, the gate input does not affect counter operation. Once armed, the counter will count to TC repetitively. On each TC the counter will reload itself from the Load register; hence the Load register value determines the time between TCs. A square wave rate generator may be obtained by specifying the TC Toggled output mode in the Counter Mode register.
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COUNT | 2 | 1 | 0 | L | 2 | 1 | 0 | L | 2 | 1 | 0 | |||||
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TC OUTPUT
TC TOGGLED
OUTPUT
Mode D Waveforms
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