TL16C550B Datasheet, PDF (16/35 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT

TL16C550B, TL16C550BI
ASYNCHRONOUS COMMUNICATIONS ELEMENT
SLLS136B – JANUARY 1994 – REVISED AUGUST 1996
PARAMETER MEASUREMENT INFORMATION
SOUT
Start
50%
Data Bits
Parity
Stop
td15
INTRPT
(THRE)
50%
td17
WR THR _50%
50%
50%
td18
td17
50%
50%
td16
RD IIR
Figure 9. Transmitter Timing Waveforms
Start
50%
50%
50%
50%
td19
50%
WR
(WR THR)
Byte #1
50%
SOUT
Data
Parity
Stop
Start
50%
TXRDY
td20
50%
td21
50%
Figure 10. Transmitter Ready (TXRDY) Waveforms, FCR0 = 0 or FCR0 = 1 and FCR3 = 0 (Mode 0)
WR
(WR THR)
Byte #16
50%
SOUT
Data
Parity
Stop
Start
50%
TXRDY
td20
50%
td21
FIFO Full
50%
Figure 11. Transmitter Ready (TXRDY) Waveforms, FCR0 = 1 and FCR3 = 1 (Mode 1)
16
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265