PCI BUS OCTAL UART
XR17C158
PRELIMINARY
REV. 1.0.0
4
DTR1#
DSR1#
CD1#
118
122
121
O
I
I
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).
.
RI1#
TX2
RX2
120
106
99
I
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
Carrier Detect or general purpose input (active low).
O
I
RTS2#
CTS2#
DTR2#
DSR2#
CD2#
104
100
105
101
102
O
I
O
I
I
RI2#
TX3
RX3
103
98
91
I
UART channel 2 Ring Indicator or general purpose intput (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
Carrier Detect or general purpose input (active low).
UART channel 3 Ring Indicator or general purpose input
(active low).
O
I
RTS3#
CTS3#
DTR3#
DSR3#
CD3#
96
92
97
93
94
O
I
O
I
I
RI3#
95
I
TX4
RX4
88
81
O
I
UART channel 4 Transmit Data or infrared transmit data.
UART channel 4 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 4 Request to Send or general purpose output (active low).
UART channel 4 Clear to Send or general purpose input (active low).
UART channel 4 Data Terminal Ready or general purpose output (active low).
UART channel 4 Data Set Ready or general purpose input (active low).
UART channel 4
Carrier Detect or general purpose input (active low).
UART channel 4 Ring Indicator or general purpose input
(active low).
RTS4#
CTS4#
DTR4#
DSR4#
CD4#
86
82
87
83
84
O
I
O
I
I
RI4#
85
I
TX5
RX5
80
71
O
I
UART channel 5 Transmit Data or infrared transmit data.
UART channel 5 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 5 Request to Send or general purpose output (active low).
UART channel 5 Clear to Send or general purpose input (active low).
UART channel 5 Data Terminal Ready or general purpose output (active low).
UART channel 5 Data Set Ready or general purpose input (active low).
UART channel 5
Carrier Detect or general purpose input (active low).
RTS5#
CTS5#
DTR5#
DSR5#
CD5#
78
72
79
75
76
O
I
O
I
I
Pin Description
N
AME
P
IN
#
T
YPE
D
ESCRIPTION