XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 43

• Manufacturer Part Number: XRT84L38IB
• Description: Network Controller & Processor ICs 8 Ch T1/E1 Framer
• Manufacturer: Exar Corporation

Specifications of XRT84L38IB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.1
RECEIVE DECODER LIU INTERFACE
(Framer Channel Number indicated by _n)
TRANSMIT ENCODER LIU INTERFACE
(Framer Channel Number indicated by _n)
RxLineCLK_0
RxLineCLK_1
RxLineCLK_2
RxLineCLK_3
RxLineCLK_4
RxLineCLK_5
RxLineCLK_6
RxLineCLK_7
S
S
IGNAL
IGNAL
RxPOS_0
RxPOS_1
RxPOS_2
RxPOS_3
RxPOS_4
RxPOS_5
RxPOS_6
RxPOS_7
RxNEG_0
RxNEG_1
RxNEG_2
RxNEG_3
RxNEG_4
RxNEG_5
RxNEG_6
RxNEG_7
TxPOS_0
TxPOS_1
TxPOS_2
TxPOS_3
TxPOS_4
TxPOS_5
TxPOS_6
TxPOS_7
TxNRZ_0
TxNRZ_1
TxNRZ_2
TxNRZ_3
TxNRZ_4
TxNRZ_5
TxNRZ_6
TxNRZ_7
N
N
AME
AME
P
P
AA2
AC2
AB1
AD1
AA4
AE2
AB2
AD2
AB2
AD2
W2
W1
W4
W3
W3
G3
H1
R2
C1
D1
G1
M4
H3
H3
E4
F1
T2
K4
T3
E3
K3
T4
E3
K3
T4
L2
J3
L3
L1
L1
IN
IN
#
#
T
T
YPE
YPE
O
O
I
I
I
Receive Positive Polarity Pulse—Framer_n:
This input pin is intended to be connected to the RxPOS or RPDATA output of
the LIU (Line Interface Unit) IC associated with Framer_n.
The LIU will assert this input signal (pulse it "High"), when it is receiving a posi-
tive-polarity pulse from the line. This input signal is sampled and latched into the
Framer, on the user-selectable edge (rising or falling) of the RxLineClk_n signal.
Receive Negative Polarity Pulse—Framer_n:
This input pin is intended to be connected to the RxNEG or RNDATA output of the
LIU (Line Interface Unit) associated with Framer_n.
The LIU will assert this input signal (pulse it "High"), when it is receiving a nega-
tive-polarity pulse from the line. This input signal is sampled and latched into the
Framer, on the user-selectable edge (rising or falling) of the RxLineClk_n signal.
Receive Line Clock Input—Framer_n:
This input pin is intended to be connected to the RxClk output of the LIU (Line
Interface Unit) associated with Framer_n.
Framer_n uses the user-selectable edge of this signal to sample and latch the
signals at the RxPOS_n and RxNEG_n input pins.
Transmit Positive Polarity Pulse—Framer_n:
This output pin is intended to be connected to the TxPOS or TPDATA input of
the LIU (Line Interface Unit) associated with Framer_n.
Framer_n will assert this signal when it wishes for the Line Interface Unit (LIU)
associated with Framer_n, to transmit a positive polarity pulse on the line.
Transmit Non Return to Zero:
Unipolar output for transmitted data. TxNRZ_n includes the results of bit 7 stuff-
ing, but does not include HDB3 encoding.
23
D
D
ESCRIPTION
ESCRIPTION
OCTAL T1/E1/J1 FRAMER
XRT84L38