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XR17V252 Datasheet(PDF) 64 Page - Exar Corporation

Part # XR17V252
Description  66 MHZ PCI BUS DUAL UART WITH POWER MANAGEMENT SUPPORT
Download  69 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XR17V252 Datasheet(HTML) 64 Page - Exar Corporation

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XR17V252
64
66 MHZ PCI BUS DUAL UART WITH POWER MANAGEMENT SUPPORT
REV. 1.0.1
FIGURE 24. TRANSMIT DATA INTERRUPT AT TRIGGER LEVEL
FIGURE 25. RECEIVE DATA READY INTERRUPT AT TRIGGER LEVEL
STOP
BIT
PARITY
BIT
DATA BITS (5-8)
D0
D1
D2
D3
D4
D5
D6
D7
5 DATA BITS
6 DATA BITS
7 DATA BITS
START
BIT
TX Data
NEXT
DATA
START
BIT
TX Interrupt at
Transmit Trigger Level
BAUD RATE CLOCK of 16X or 8X
TXNOFIFO-1
Set at Below
Trigger Level
Clear at
Above
Trigger Level
STOP
BIT
PARITY
BIT
DATA BITS (5-8)
D0
D1
D2
D3
D4
D5
D6
D7
START
BIT
RX Data Input
First byte that
reaches the
trigger level
RX Data Ready Interrupt at
Receive Trigger Level
RXFIFO1
De-asserted at
below trigger level
Asserted at
above trigger
level


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