xr17v254 Exar Corporation, xr17v254 Datasheet - Page 4

• Manufacturer Part Number: xr17v254
• Description: 66mhz Pci Bus Quad Uart With Power Management Support
• Manufacturer: Exar Corporation

XR17V254
66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT
PIN DESCRIPTIONS
DTR0#
DSR0#
RTS1#
CTS1#
DTR1#
DSR1#
RTS2#
CTS2#
DTR2#
DSR2#
RTS3#
CTS3#
DTR3#
DSR3#
CD0#
CD1#
CD2#
CD3#
N
RI0#
RI1#
RI2#
RX1
RX2
RX3
TX1
TX2
TX3
AME
P
126
130
129
128
106
104
100
105
101
102
103
99
88
81
86
82
87
83
84
85
62
55
60
56
61
57
58
IN
#
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
UART channel 0 Data Terminal Ready or general purpose output (active
LOW).
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 HIGH condition. The infrared pulses can be inverted prior to decoding
by setting FCTR bit [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 Carrier Detect or general purpose input (active LOW).
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 HIGH condition. The infrared pulses can be inverted prior to decoding
by setting FCTR bit [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 Carrier Detect or general purpose input (active LOW).
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 HIGH condition. The infrared pulses can be inverted prior to decoding
by setting FCTR bit [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).
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 Carrier Detect or general purpose input (active LOW).
4
D
ESCRIPTION
REV. 1.0.0