XR16C872IQ View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XR16C872IQ' PDF : 60 Pages View PDF
Preliminary
XR16C872
INT
(THR Empty
Interrupt)
IOW#
D0-D7
TX
Active
T18D
Active
T19D
Active
Active
Data
Byte 1
Data
Byte 2
T17D
Active
Active
Data
Byte 3
START
BIT
DATA BITS (5-8)
D0 D1 D2 D3 D4 D5 D6 D7
STOP
BIT
PARITY
5 DATA BITS
BIT
NEXT DATA
START BIT
6 DATA BITS
7 DATA BITS
INT
(THR Empty
Interrupt)
IOW#
16 BAUD RATE CLOCK
Figure 14. Transmit Data Timing
XR872TX
TX Data
Fills FIFO
TX is Sent and FIFO Gets Empty to Trigger Level
Rev. P1.00
Figure 15. Transmit FIFO Operation
53
TX FIFO Gets More Data
XR872TFIFO
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