TL16CP754C Datasheet, PDF (42/49 Pages) Texas Instruments – QUAD UARTS WITH 64-BYTE FIFO

TL16CP754C, TL16CM754C, TL16C754C
SLLS644E – DECEMBER 2007 – REVISED MAY 2010
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Figure 32. Timing Causing 1-Clock-Wide Pulse Between Consecutive Ones
Figure 33. Recommended Strobing For Decoded Data
The '754C can decode positive pulses on Rx. The timing is different, but the variation is invisible to the UART.
The decoder, which works from the falling edge, now recognizes a zero on the trailing edge of the pulse rather
than on the leading edge. As long as the pulse width is fairly constant, as defined by the specification, the trailing
edges should also be 16 clock cycles apart and data can readily be decoded. The zero appears on Int_Rx after
the pulse rather than at the start of it.
Figure 34. Positive Rx Pulse Decode – Detailed View
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