XRT86L30
REV. 1.0.1
SINGLE T1/E1/J1 FRAMER/LIU COMBO
TRANSMIT SERIAL DATA INPUT
S
IGNAL
N
AME
P
IN
#
TYPE
DESCRIPTION
TxCHN_0/
TxSig
53
O
Transmit Time Slot Octet Identifier Output-Bit 0
These output signals (TxCHN4_n through TxCHN0_n) reflect the five-bit binary
value of the number of the current time slot being accepted and processed by the
transmit payload data input Interface block. Terminal Equipment can use TxCHCLK
to sample the five output pins of each channel in order to identify the time slot being
processed.
Transmit Serial Signaling Bus Input
These pins can be used to input robbed-bit signaling data within an outbound DS1
frame or to input Channel Associated Signaling (CAS) bits within an outbound E1
frame.
I
TxCHN_1/
TxFrTD
50
I/O Transmit Time Slot Octet Identifier Output-Bit 1
These output signals (TxCHN4_n through TxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being accepted and processed by the transmit
payload data input Interface. Terminal Equipment can use TxCHCLK to sample the
five output pins of each channel in order to identify the time slot being processed.
Transmit Serial Fractional DS1/E1 Input
These pins can be used to input fractional DS1/E1 payload data within an outbound
DS1/E1 frame. In this mode, terminal equipment will use either TxCHCLK or
TxSERCLK to sample fractional DS1/E1 payload data.
TxCHN_2/
Tx12MHz
47
O
Transmit Time Slot Octet Identifier Output-Bit 2
These output signals (TxCHN4_n through TxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being accepted and processed by the transmit
payload data input Interface block. Terminal Equipment can use TxCHCLK to sam-
ple the five output pins of each channel in order to identify the time slot being pro-
cessed. If TxCHN1_n is configured as TxFrTD_n to input fractional DS1/E1
payload data, the TxCHN2_n pin will serially output the five-bit binary value of the
number of the Time Slot being accepted and processed.
Transmit 12.352MHz Clock Output
These pins can be used to output 12.352MHz/16.384MHz clock derived from the
MCLKIN input pin.
TxCHN_3/
46
O
Transmit Time Slot Octet Identifier Output-Bit 3:
TxOHSync
These output signals (TxCHN4_n through TxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being accepted and processed by the transmit
payload data input Interface block. Terminal Equipment can use TxCHCLK to sam-
ple the five output pins of each channel in order to identify the time slot being pro-
cessed.
Transmit Overhead Synchronization Pulse
These pins can be used to output an Overhead Synchronization Pulse that indi-
cates the first bit of each multi-frame.
TxCHN_4
45
O
Transmit Time Slot Octet Identifier Output-Bit 4:
These output signals (TxCHN4_n through TxCHN0_n) reflect the five-bit binary
value of the number of Time Slot being accepted and processed by the transmit
payload data input Interface block. Terminal Equipment can use TxCHCLK to sam-
ple the five output pins of each channel in order to identify the time slot being pro-
cessed.
10
EXAR [ EXAR CORPORATION ]
