PM7346 datasheet(181/419 Pages) PMC

181 / 419 page

PM7346 S/UNI-QJET

DATASHEET

PMC-960835

ISSUE 6

SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3

PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 160

Bit

Type

Function

Default

Bit 7

R/W

DLOS

Bit 6

R/W

DLCV

Bit 5

Unused

Bit 4

R/W

DFERR

Bit 3

R/W

DMERR

Bit 2

R/W

DCPERR

Bit 1

R/W

DPERR

Bit 0

R/W

DFEBE

DFEBE:

The DFEBE bit controls the insertion of far end block errors in the DS3

stream. When DFEBE is written with a logic 1, and the C-bit parity application

is enabled, the three C-bits in M-subframe 4 are set to a logic 0. When

DFEBE is written with a logic 0, FEBEs are indicated based on receive

framing bit errors and path parity errors.

DPERR:

The DPERR bit controls the insertion of parity errors (P-bit errors) in the DS3

stream. When DPERR is written with a logic 1, the P-bits are inverted before

insertion. When DPERR is written with a logic 0, the parity is calculated and

inserted normally.

DCPERR:

The DCPERR bit controls the insertion of path parity errors in the DS3

stream. When DCPERR is written with a logic 1 and the C-bit parity

application is enabled, the three C-bits in M-subframe 3 are inverted before

insertion. When DCPERR is written with a logic 0, the path parity is

calculated and inserted normally.

DMERR:

The DMERR bit controls the insertion of M-bit framing errors in the DS3

stream. When DMERR is written with a logic 1, the M-bits are inverted before

insertion. When DMERR is written with a logic 0, the M-bits are inserted

normally.

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