XRT86L30
SINGLE T1/E1/J1 FRAMER/LIU COMBO
RECEIVE SERIAL DATA OUTPUT
REV. 1.0.1
S
IGNAL
NAME
P
IN
#
TYPE
DESCRIPTION
RxSER
44
O
Receive Serial Data Output
This output pin along with RxSERCLK functions as the Receive Serial Output.
DS1/E1 mode
Any incoming T1/E1 line data that is received from the line will be decoded and
output via this pin. The framer can use either the rising edge or the falling edge
of RxSERCLK to update the received T1/E1 payload data.
Framer Bypass Mode:
In framer bypass mode, RxSER is used for the positive digital output pin to the
LIU.
RxCHN_0/
RxSig
40
O
Receive Time Slot Octet Identifier Output-Bit 0
These output signals (RxCHN4_n through RxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being received and output to the Terminal
Equipment via the Receive Payload Data Output Interface. The Terminal Equip-
ment can use RxCHCLK to sample these five output pins in order to identify the
time slot being processed.
Receive Serial Signaling Output
These pins can be used to output robbed-bit signaling (DS1) or CAS signaling
(E1) extracted from an incoming DS1/E1 frame.
RxCHN_1/
RxFrTD
36
O
Receive Time Slot Octet Identifier Output-Bit 1
These output signals (RxCHN4_n through RxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being received and output to the Terminal
Equipment via the Receive Payload Data Output Interface. The Terminal Equip-
ment can use RxCHCLK to sample these five output pins in order to identify the
time slot being processed.
Receive Serial Fractional DS1/E1 Output
These pins can be used to output fractional DS1/E1 payload data within an
inbound DS1/E1 frame. In this mode, terminal equipment will use either RxCH-
CLK or RxSERCLK to clock out fractional DS1/E1 payload data.
RxCHN_2/
RxCHN
32
O
Receive Time Slot Octet Identifier Output-Bit 2
These output signals (RxCHN4_n through RxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being received and output to the Terminal
Equipment via the Receive Payload Data Output Interface. The Terminal Equip-
ment can use RxCHCLK to sample these five output pins in order to identify the
time slot being processed.
Receive Time Slot Identifier Serial Output
If RxCHN1 is configured as RxFrTD to output fractional DS1/E1 payload data,
then these pins serially output the five-bit binary value of the number of the Time
Slot being accepted and processed by the Transmit Payload Data Input Inter-
face.
RxCHN_3/
Rx8KHZ
28
O
Receive Time Slot Octet Identifier Output-Bit 3
These output signals (RxCHN4_n through RxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being received and output to the Terminal
Equipment via the Receive Payload Data Output Interface. The Terminal Equip-
ment can use RxCHCLK to sample these five output pins in order to identify the
time slot being processed.
Receive 8KHz Clock Output
These pins can output a reference 8KHz clock signal if configured accordingly.
13
EXAR [ EXAR CORPORATION ]
