xr
XR17C158
REV. 1.4.3
5V PCI BUS OCTAL UART
5
TX6
62
O
UART channel 6 Transmit Data or infrared transmit data.
RX6
55
I
UART channel 6 Receive Data or infrared receive data. Normal RXD input
idles HIGH. The infrared pulses typically idle LOW but can be inverted inter-
nally prior the decoder by FCTR[4].
RTS6#
60
O
UART channel 6 Request to Send or general purpose output (active low).
CTS6#
56
I
UART channel 6 Clear to Send or general purpose input (active low).
DTR6#
61
O
UART channel 6 Data Terminal Ready or general purpose output (active low).
DSR6#
57
I
UART channel 6 Data Set Ready or general purpose input (active low).
CD6#
58
I
UART channel 6 Carrier Detect or general purpose input (active low).
RI6#
59
I
UART channel 6 Ring Indicator or general purpose input (active low).
TX7
54
O
UART channel 7 Transmit Data or infrared transmit data.
RX7
47
I
UART channel 7 Receive Data or infrared receive data. Normal RXD input
idles HIGH. The infrared pulses typically idle LOW but can be inverted inter-
nally prior the decoder by FCTR[4].
RTS7#
52
O
UART channel 7 Request to Send or general purpose output (active low).
CTS7#
48
I
UART channel 7 Clear to Send or general purpose input (active low).
DTR7#
53
O
UART channel 7 Data Terminal Ready or general purpose output (active low).
DSR7#
49
I
UART channel 7 Data Set Ready or general purpose input (active low).
CD7#
50
I
UART channel 7 Carrier Detect or general purpose input (active low).
RI7#
51
I
UART channel 7 Ring Indicator or general purpose input (active low).
ANCILLARY SIGNALS
MPIO0
108
I/O
Multi-purpose input/output 0. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT
MPIO1
107
I/O
Multi-purpose input/output 1. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
MPIO2
74
I/O
Multi-purpose input/output 2. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
MPIO3
73
I/O
Multi-purpose input/output 3. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
MPIO4
68
I/O
Multi-purpose input/output 4. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
MPIO5
67
I/O
Multi-purpose input/output 5. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
MPIO6
66
I/O
Multi-purpose input/output 6. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
MPIO7
65
I/O
Multi-purpose input/output 7. The function of this pin is defined thru the Con-
figuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and MPIOINT.
EECK
116
O
Serial clock to EEPROM. An internal clock of CLK divide by 256 is used for
reading the vendor and sub-vendor ID during power up or reset. However, it
can be manually clocked thru the Configuration Register REGB.
Pin Description
NAME
PIN #TYPE
DESCRIPTION