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XR17V358
3
REV. 1.0.4
HIGH PERFORMANCE OCTAL PCI EXPRESS UART
PIN DESCRIPTIONS
NAME
PIN #
TYPE
DESCRIPTION
PCIe SIGNALS
CLK+
CLK-
G4
H4
I
PCIe reference clock input.
TX+
TX-
J1
J2
O
PCIe differential TX outputs
RX+
RX-
G1
G2
I
PCIe differential RX inputs
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.