DS26521 datasheet(139/258 Pages) MAXIM

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DS26521 Single T1/E1/J1 Transceiver

139 of 258

T1RSCC (T1 Mode Only)

In-Band Receive Spare Control Register

089h

Bit #

Name

—

RSC2

RSC1

RSC0

Default

Bits 2 to 0: Receive Spare Code Length Definition Bits (RSC[2:0]).

RSC2

RSC1

RSC0

LENGTH SELECTED

(BITS)

8:16

RXPC

Receive Expansion Port Control Register

08Ah

Bit #

Name

—

RBPDIR

RBPFUS

RBPEN

—

RBPDIR

—

RBPEN

Default

Bit 2: Receive BERT Port Direction Control (RBPDIR).

0 = Normal (line) operation. Receive BERT port receives data from the receive framer.

1 = System (backplane) operation. Receive BERT port receives data from the transmit path. The transmit

path enters the receive BERT on the line side of the elastic store (if enabled).

Bit 1: Receive BERT Port Framed/Unframed Select (RBPFUS) (T1 Mode Only).

0 = The receive BERT will not clock data from the F-bit position (framed).

1 = The receive BERT will clock data from the F-bit position (unframed).

Bit 0: Receive BERT Port Enable (RBPEN).

0 = Receive BERT port is not active.

1 = Receive BERT port is active.

DS26521 Datasheet(PDF) 139 Page - Maxim Integrated Products

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