XR17V254 Datasheet, PDF (4/70 Pages) Exar Corporation – 66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT

XR17V254
66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT
PIN DESCRIPTIONS
REV. 1.0.0
NAME
DTR0#
DSR0#
CD0#
RI0#
TX1
RX1
RTS1#
CTS1#
DTR1#
DSR1#
CD1#
RI1#
TX2
RX2
RTS2#
CTS2#
DTR2#
DSR2#
CD2#
RI2#
TX3
RX3
RTS3#
CTS3#
DTR3#
DSR3#
CD3#
PIN #
126
130
129
128
106
99
104
100
105
101
102
103
88
81
86
82
87
83
84
85
62
55
60
56
61
57
58
TYPE
DESCRIPTION
O UART channel 0 Data Terminal Ready or general purpose output (active
LOW).
I UART channel 0 Data Set Ready or general purpose input (active LOW).
I UART channel 0 Carrier Detect or general purpose input (active LOW).
I UART channel 0 Ring Indicator or general purpose input (active LOW).
O UART channel 1 Transmit Data or infrared transmit data.
I UART channel 1 Receive Data or infrared receive data. Normal RXD input
idles at HIGH condition. The infrared pulses can be inverted prior to decoding
by setting FCTR bit [4].
O UART channel 1 Request to Send or general purpose output (active LOW).
I UART channel 1 Clear to Send or general purpose input (active LOW).
O UART channel 1 Data Terminal Ready or general purpose output (active
LOW).
I UART channel 1 Data Set Ready or general purpose input (active LOW).
I UART channel 1 Carrier Detect or general purpose input (active LOW).
I UART channel 1 Ring Indicator or general purpose input (active LOW).
O UART channel 2 Transmit Data or infrared transmit data.
I UART channel 2 Receive Data or infrared receive data. Normal RXD input
idles at HIGH condition. The infrared pulses can be inverted prior to decoding
by setting FCTR bit [4].
O UART channel 2 Request to Send or general purpose output (active LOW).
I UART channel 2 Clear to Send or general purpose input (active LOW).
O UART channel 2 Data Terminal Ready or general purpose output (active
LOW).
I UART channel 2 Data Set Ready or general purpose input (active LOW).
I UART channel 2 Carrier Detect or general purpose input (active LOW).
I UART channel 2 Ring Indicator or general purpose input (active LOW).
O UART channel 3 Transmit Data or infrared transmit data.
I UART channel 3 Receive Data or infrared receive data. Normal RXD input
idles at HIGH condition. The infrared pulses can be inverted prior to decoding
by setting FCTR bit [4].
O UART channel 3 Request to Send or general purpose output (active LOW).
I UART channel 3 Clear to Send or general purpose input (active LOW).
O UART channel 3 Data Terminal Ready or general purpose output (active
LOW).
I UART channel 3 Data Set Ready or general purpose input (active LOW).
I UART channel 3 Carrier Detect or general purpose input (active LOW).
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