XRT86L30 datasheet(21/284 Pages) EXAR

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XRT86L30

REV. 1.0.1

SINGLE T1/E1/J1 FRAMER/LIU COMBO

TxCHN_0/

TxSig

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.

TxCHN_1/

TxFrTD

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

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/

TxOHSync

Transmit Time Slot Octet Identifier Output-Bit 3:

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

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.

TRANSMIT SERIAL DATA INPUT

SIGNAL NAME

PIN #

TYPE

DESCRIPTION

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