
á
PRELIMINARY
DS3 UNI FOR ATM
XRT7245
REV. 1.03
15
51
RxCellRxed
O
Receive Cell Processor—Cell Received Indicator:
This output pin pulses “high”
each time the Receive Cell Processor receives a new cell from the Receive PLCP Pro-
cessor or the Receive DS3 Framer.
52
GND
***
Ground Pin Signal
53
RxData15
O
Receive UTOPIA Data Bus Input (MSB):
This output pin, along with RxData14
through RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has
been received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus,
where it can be read and processed by the ATM Layer Processor.
54
RxData7
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
55
RxData14
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
56
RxData6
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
57
RxData13
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
58
RxData5
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
59
VDD
***
Power Supply Pin
60
RxData4
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
61
RxData12
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
62
RxData3
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
63
RxData11
O
Receive UTOPIA Data Bus Output:
This output pin, along with RxData14 through
RxData0 functions as the Receive UTOPIA Data Bus. ATM cell data that has been
received from the “Far-End” UNI is output on the Receive UTOPIA Data Bus, where it
can be read and processed by the ATM Layer Processor.
PIN DESCRIPTION (CONT’D)
P
IN
N
O
.
S
YMBOL
T
YPE
D
ESCRIPTION