PM7347 datasheet(111/341 Pages) PMC

111 / 341 page

S/UNI®-JET Data Sheet

Released

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

111

Document ID: PMC-1990267, Issue 3

Bit

Type

Function

Default

Bit 7

R/W

DPFRM

Bit 6

R/W

DAFRM

Bit 5

R/W

DB1

Bit 4

R/W

DFEBE

Bit 3

R/W

YEL

Bit 2

R/W

LSS[2]

Bit 1

R/W

LSS[1]

Bit 0

R/W

LSS[0]

LSS[2:0]

The LSS[2:0] bits control the value inserted in the link status signal code bit positions of the

path status octet (G1). These bits should be written with logic zero when implementing an

ATM Forum UNI-compliant DS3 interface.

YEL

The YEL bit controls the yellow signal bit position in the path status octet (G1). When a logic

one is written to YEL, the PLCP yellow alarm signal is transmitted.

DFEBE

The DFEBE bit controls the insertion of FEBEs in the PLCP frame. When DFEBE is written

with a logic one, a single FEBE is inserted each PLCP frame. When DFEBE is written with a

logic zero, FEBEs are indicated based on receive PLCP bit interleaved parity errors.

DB1

The DB1 bit controls the insertion of bit interleaved parity (BIP) errors in the PLCP frame.

When DB1 is written with a logic one, a single BIP error is inserted in each PLCP frame.

When DB1 is written with a logic zero, the bit interleaved parity is calculated and inserted

normally.

DAFRM

The DAFRM bit controls the insertion of frame alignment pattern errors. When DAFRM is

written with a logic one, a single bit error is inserted in each A1 octet, and in each A2 octet.

When DAFRM is written with a logic zero, the frame alignment pattern octets are inserted

normally.

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