XR17V358 Datasheet, PDF (3/68 Pages) Exar Corporation – HIGH PERFORMANCE OCTAL PCI EXPRESS UART

REV. P1.0.2
PRELIMINARY
XR17V358
HIGH PERFORMANCE OCTAL PCI EXPRESS UART
PIN DESCRIPTIONS
NAME
PIN #
TYPE
DESCRIPTION
PCIe SIGNALS
CLK+
CLK-
G4
I PCIe reference clock input.
H4
I
TX+
J1
O PCIe differential TX outputs
TX-
J2
O
RX+
G1
I PCIe differential RX inputs
RX-
G2
I
CLKREQ#
L1
O PCIe edge connector clock request
PERST#
L2
I PCIe edge connector reset
REXT
H3
Connect a 191 ohm 1% resistor to GND. This is used for PCIe PHY calibra-
tion.
MODEM OR SERIAL I/O INTERFACE
TX0
N13
O UART channel 0 Transmit Data or infrared transmit data.
RX0
M13
I UART channel 0 Receive Data or infrared receive data. Normal RXD input
idles at HIGH condition. The infrared pulses can be inverted internally prior to
decoding by setting FCTR bit [4].
RTS0#
P15
O UART channel 0 Request to Send or general purpose output (active LOW).
CTS0#
N14
I UART channel 0 Clear to Send or general purpose input (active LOW).
DTR0#
N15
O UART channel 0 Data Terminal Ready or general purpose output (active
LOW).
DSR0#
M14
I UART channel 0 Data Set Ready or general purpose input (active LOW).
CD0#
L13
I UART channel 0 Carrier Detect or general purpose input (active LOW).
RI0#
L14
I UART channel 0 Ring Indicator or general purpose input (active LOW).
TX1
L15
O UART channel 1 Transmit Data or infrared transmit data.
RX1
K14
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].
RTS1#
K13
O UART channel 1 Request to Send or general purpose output (active LOW).
CTS1#
K15
I UART channel 1 Clear to Send or general purpose input (active LOW).
DTR1#
J13
O UART channel 1 Data Terminal Ready or general purpose output (active
LOW).
DSR1#
J14
I UART channel 1 Data Set Ready or general purpose input (active LOW).
CD1#
J15
I UART channel 1 Carrier Detect or general purpose input (active LOW).
RI1#
H13
I UART channel 1 Ring Indicator or general purpose input (active LOW).
TX2
C9
O UART channel 2 Transmit Data or infrared transmit data.
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