SLG47503M datasheet(77/191 Pages) DIALOG

77 / 191 page

Datasheet

16-Jul-2021

CFR0011-120-00

Revision 2.0

77 of 191

SLG47502/03

Low Voltage GreenPAK Programmable

Mixed-Signal Matrix

Preliminary

8.3.3 One-Shot Mode CNT/DLY0 to CNT/DLY7

This macrocell will generate a pulse whenever a selected edge is detected on its input. Register bits set the edge selection. The

pulse width is determined by counter data and clock selection properties. The output pulse polarity (non-inverted or inverted) is

selected by register bit. Any incoming edges will be ignored during the pulse width generation. The following diagram shows

one-shot function for non-inverted output.

This macrocell generates a high level pulse with a set width (defined by counter data) when detecting the respective edge. It does

not restart while pulse is high.

8.3.4 Frequency Detection Mode CNT/DLY0 to CNT/DLY7

Rising Edge: The output goes high if the time between two successive edges is less than the delay. The output goes low if the

second rising edge has not come after the last rising edge in specified time.

Falling Edge: The output goes high if the time between two falling edges is less than the set time. The output goes low if the

second falling edge has not come after the last falling edge in specified time.

Both Edge: The output goes high if the time between the rising and falling edges is less than the set time, which is equivalent to

the length of the pulse. The output goes low if after the last rising/falling edge and specified time, the second edge has not come.

Figure 55: One-Shot Function Timing Diagram

One-Shot/Freq. DET/Delay IN

One-Shot Function

Rising Edge Detection

One-Shot Function

Falling Edge Detection

One-Shot Function

Both Edge Detection

Delay time

SLG47503M Datasheet(PDF) 77 Page - Dialog Semiconductor