XR17D154 Exar Corporation, XR17D154 Datasheet - Page 4

• Manufacturer Part Number: XR17D154
• Description: Four-channel Pci-bus Uart
• Manufacturer: Exar Corporation

PIN DESCRIPTIONS
áç
áç
PRELIMINARY
ANCILLARY SIGNALS
áç
áç
DTR1#
DSR1#
DTR2#
DSR2#
DTR3#
DSR3#
RTS1#
CTS1#
RTS2#
CTS2#
RTS3#
CTS3#
MPIO0
MPIO1
MPIO2
N
CD1#
CD2#
CD3#
RI1#
RI2#
RI3#
RX1
TX2
RX2
TX3
RX3
AME
P
104
100
105
101
102
103
108
107
99
88
81
86
82
87
83
84
85
62
55
60
56
61
57
58
59
74
IN
#
T
I/O
I/O
I/O
YPE
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
UART channel 1 Ring Indicator or general purpose input (active low).
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 Carrier Detect 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).
Multi-purpose input/output 0. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT
Multi-purpose input/output 1. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
Multi-purpose input/output 2. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
4
Carrier Detect or general purpose input (active low).
Carrier Detect or general purpose input (active low).
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
D
ESCRIPTION
XR17D154
REV. P1.0.0