Counters A counter is a digital timing device
{"Image DocumentName": "Counters A counter is a digital timing device", "Image ImageDescription": "Typical uses of a counter: Event counting. Frequency measurement. Period measurement. Position measurement. Pulse generation. Gate. Output. Count Register. Source. Count register \u2013 Stores the current count of the counter. Source \u2013 Input that causes the counter to increment each time it toggles. Gate \u2013 Input that is used to enable or disable the function of the counter. Output \u2013 Signal that generates pulses or a series of pulses. A counter is a digital timing device. You typically use counters for event counting, frequency measurement, period measurement, position measurement, and pulse generation. A counter contains four main components: a count register, a source, a gate, and an output. Count Register\u2014Stores the current count of the counter. You can query the count register with software. Source\u2014An input signal that can change the current count stored in the count register. The counter looks for rising or falling edges on the source signal. Whether a rising or falling edge changes the count is software selectable. The type of edge selected is referred to as the active edge of the signal. When an active edge is received on the source signal the count changes. Whether an active edge increments or decrements the current count is also software selectable. Gate\u2014An input signal that determines if an active edge on the source will change the count. Counting can occur when the gate is high, low, or between various combinations of rising and falling edges. Gate settings are made in software. Output\u2014An output signal that generates pulses or a series of pulses, otherwise known as a pulse train. When you configure a counter for simple event counting, the counter increments when an active edge is received on the source.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}