XRT72L52 Datasheet, PDF (32/480 Pages) Exar Corporation – TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L52
TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.3
áç
PRELIMINARY
PIN DESCRIPTION
PIN #
118
PIN NAME
RxNib3[0]/
RxHDLCDat3[0]
119
RxNib2[0]/
RxHDLCDat2[0]
120
RxNib1[0]/
RxHDLCDat1[0]
121
RxNib0[0]/
RxHDLCDat0[0]
TYPE
O
O
O
O
DESCRIPTION
Receive Nibble Output - 3:
The Framer IC will output "Received data (from the Remote Terminal) to
the local Terminal Equipment via this pin along with RxNib0, RxNib1
and RxNib2.
The data at this pin is updated on the rising edge of the RxClk output
signal.
NOTE: This output pin is active only if the Nibble-Parallel Mode has
been selected.
Receive HDLC Data Output - 3:
This pin contains bit 3 RxHDLC data when the HDLC controller is on.
Receive Nibble Output - 2:
The Framer IC will output "Received data (from the Remote Terminal) to
the local Terminal Equipment via this pin along with RxNib0, RxNib1
and RxNib2.
The data at this pin is updated on the rising edge of the RxClk output
signal.
NOTE: This output pin is active only if the Nibble-Parallel Mode has
been selected.
Receive HDLC Data Output - 2:
This pin contains bit 2 RxHDLC data when the HDLC controller is on.
Receive Nibble Output - 1:
The Framer IC will output "Received data (from the Remote Terminal) to
the local Terminal Equipment via this pin along with RxNib0, RxNib2
and RxNib3.
The data at this pin is updated on the rising edge of the RxClk output
signal.
NOTE: This output pin is active only if the Nibble-Parallel Mode has
been selected.
Receive HDLC Data Output - 1:
This pin contains bit 1 RxHDLC data when the HDLC controller is on.
Receive Nibble Output - 0:
The Framer IC will output "Received data (from the Remote Terminal) to
the local Terminal Equipment via this pin along with RxNib1, RxNib2
and RxNib3.
The data at this pin is updated on the rising edge of the RxClk output
signal.
NOTE: This output pin is active only if the Nibble-Parallel Mode has
been selected.
Receive HDLC Data Output - 0:
This pin contains bit 0 RxHDLC data when the HDLC controller is on.
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