Datasheet

TL16C554A, TL16C554AI
ASYNCHRONOUS-COMMUNICATIONS ELEMENT

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SLLS509E − AUGUST 2001 − REVISED JUNE 2010
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Midpoint of Stop Bit
t
pd10
t
su6
CTS
TXx
50% 50%
50%
Figure 15. CTS and TX Autoflow Control Timing (Start and Stop) Waveforms
t
PD12
RXx
50%
t
PD11
50%
50%
Midpoint of Stop Bit
RTSx
RD RBR
IOR
Figure 16. Auto-RTS Timing for RCV Threshold of 1, 4, or 8 Waveforms
t
pd14
RXx
50%
t
pd13
50%
50%
Midpoint of Data Bit 0
RTSx
RD RBR
15th Character 16th Character
IOR
Figure 17. Auto-RTS Timing for RCV Threshold of 14 Waveforms