XR16C872 Datasheet, PDF (52/60 Pages) Exar Corporation – DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER

XR16C872
DISCONTINUED
RX
INT
IOR#
START
BIT
D
0
DATA BITS (5-8)
STOP
BIT
DD
12
DD D D D
34 5 6 7
5 DATA BITS
6 DATA BITS
PARITY
BIT
NEXT
DATA
START
BIT
T15D
7 DATA BITS
Active
T16D
16 BAUD RATE CLOCK
Receive Data Timing in DMA Mode 0
XR872RX
RX Data
fills RX
FIFO
INT
IOR#
Rev. 1.00
~4 Characters
Delay
RX FIFO fills to
Trigger Level
Receive Data
Time-Out INT
Receive Data
Ready INT
Unload RX
FIFO Data
Receive Data Timing in FIFO and DMA Mode 1
XR872RFIFO
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