XR17D158 Exar Corporation, XR17D158 Datasheet - Page 4

• Manufacturer Part Number: XR17D158
• Description: Eight-channel Pci-bus Uart
• Manufacturer: Exar Corporation

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PRELIMINARY
Pin Description
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DSR0#
DTR1#
DSR1#
DTR2#
DSR2#
DTR3#
DSR3#
RTS1#
CTS1#
RTS2#
CTS2#
RTS3#
CTS3#
N
CD0#
CD1#
CD2#
CD3#
RI0#
RI1#
RI2#
RI3#
RX1
RX2
RX3
TX1
TX2
TX3
TX4
AME
P
130
129
128
117
124
119
123
118
122
121
120
106
104
100
105
101
102
103
98
91
96
92
97
93
94
95
88
IN
99
#
T
YPE
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
UART channel 0 Data Set Ready or general purpose input (active low).
UART channel 0 Carrier Detect or general purpose input (active low).
UART channel 0 Ring Indicator or general purpose input (active low).
UART channel 1 Transmit Data or infrared transmit data.
UART channel 1 Receive Data or infrared receive data. Normal RXD input
idles at logic 1 condition. The infrared pulses can be inverted internally prior
the decoder by FCTR[4].
UART channel 1 Request to Send or general purpose output (active low).
UART channel 1 Clear to Send or general purpose input (active low).
UART channel 1 Data Terminal Ready or general purpose output (active low).
UART channel 1 Data Set Ready or general purpose input (active low).
UART channel 1
UART channel 1 Ring Indicator or general purpose input (active low).
UART channel 2 Transmit Data or infrared transmit data.
UART channel 2 Receive Data or infrared receive data. Normal RXD input
idles at logic 1 condition. The infrared pulses can be inverted internally prior
the decoder by FCTR[4].
UART channel 2 Request to Send or general purpose output (active low).
UART channel 2 Clear to Send or general purpose input (active low).
UART channel 2 Data Terminal Ready or general purpose output (active low).
UART channel 2 Data Set Ready or general purpose input (active low).
UART channel 2
UART channel 2 Ring Indicator or general purpose input (active low).
UART channel 3 Transmit Data or infrared transmit data.
UART channel 3 Receive Data or infrared receive data. Normal RXD input
idles at logic 1 condition. The infrared pulses can be inverted internally prior
the decoder by FCTR[4].
UART channel 3 Request to Send or general purpose output (active low).
UART channel 3 Clear to Send or general purpose input (active low).d.
UART channel 3 Data Terminal Ready or general purpose output (active low).
UART channel 3 Data Set Ready or general purpose input (active low).
UART channel 3
UART channel 3 Ring Indicator or general purpose input (active low).
UART channel 4 Transmit Data or infrared transmit data.
4
Carrier Detect or general purpose input (active low).
Carrier Detect or general purpose input (active low).
Carrier Detect or general purpose input (active low).
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
D
ESCRIPTION
XR17D158
REV. P1.0.0