Datasheet

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SLLS102B − DECEMBER 1990 − REVISED MARCH 1996
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
PARAMETER MEASUREMENT INFORMATION
Start
Data Bits 5−8
Parity
Stop (1−2)
Start
Serial Out
(SOUT)
Interrupt
(THRE)
IOW
(WR THR)
IOR
(RD IIR)
t
d5
t
d6
t
pd2
t
pd3
t
pd2
t
d7
50%
50%
50% 50%50%50%50%
50%50% 50%
50%
Figure 6. Transmitter Timing Waveforms
IOW
(WR THR)
t
d8
t
pd4
SOUT
TXRDY
Byte #1
ParityData Stop
Start
50% 50%
50%
50%
Figure 7. Transmitter Ready Mode 0 Timing Waveforms
IOW
(WR THR)
t
d8
t
pd4
SOUT
TXRDY
Byte #16
ParityData Stop
Start
Start of
Byte #16
FIFO Full
50%
50% 50%
Figure 8. Transmitter Ready Mode 1 Timing Waveforms