PM7347 datasheet(156/341 Pages) PMC

156 / 341 page

S/UNI®-JET Data Sheet

Released

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

156

Document ID: PMC-1990267, Issue 3

DFERR

The DFERR bit selects whether the framing pattern is corrupted for diagnostic purposes.

When DFERR is logic one, the framing pattern inserted into the output data stream is

inverted. When DFERR is logic zero, the unaltered framing pattern inserted into the output

data stream.

CPERR

The CPERR bit enables continuous generation of BIP-8 errors for diagnostic purposes. When

CPERR is logic one, the calculated BIP-8 value is continuously inverted according to the

error mask specified by the BIP-8 Error Mask Register and inserted into the G.832 EM byte.

When CPERR is logic zero, the calculated BIP-8 value is altered only once, according to the

error mask specified by the BIP-8 Error Mask Register, and inserted into the EM byte.

PYLD&JUST

The PYLD&JUST bit selects whether the justification service bits and the tributary

justification bits in framing modes G.751 is indicated as overhead or payload. When

PYLD&JUST is logic one, the justification service bits and the tributary justification bits are

indicated as payload. When PYLD&JUST is logic zero, the justification service and tributary

justification bits are indicated as overhead. For G.751 ATM applications, this bit must be set

to logic one for correct cell mapping.

PM7347 Datasheet(PDF) 156 Page - PMC-Sierra, Inc