PM7347 datasheet(167/341 Pages) PMC

167 / 341 page

S/UNI®-JET Data Sheet

Released

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

167

Document ID: PMC-1990267, Issue 3

Bit

Type

Function

Default

Bit 7

R/W

CRCEE

Bit 6

R/W

FRMEE

Bit 5

R/W

BPVE

Bit 4

R/W

EXZE

Bit 3

R/W

XBITE

Bit 2

Unused

Bit 1

R/W

XBIT_DEB

Bit 0

R/W

XBIT_THR

CRCEE

When CRCEE is logic one, the J2-FRMR will generate an interrupt if a multiframe fails its

CRC-5 check.

FRMEE

When FRMEE is logic one, the J2-FRMR will generate an interrupt upon the reception of an

errored framing bit.

BPVE

When BPVE is logic one, the J2-FRMR will generate an interrupt upon the reception of a

bipolar violation which is not part of a valid B8ZS code (when UNI is set to logic zero in the

J2-FRMR Configuration Register) or on the reception of a logic one on RLCV (when UNI is

set to logic one).

EXZE

When EXZE is logic one, the J2-FRMR will generate an interrupt upon the reception of a

string of eight-or-more consecutive zeroes. EXZE has no effect when UNI is set to logic one

in the J2-FRMR Configuration Register.

XBITE

When XBITE is logic one, the J2-FRMR will generate an interrupt when any of the x-bits

(X1, X2, X3) change state. Because the XBIT interrupt is generated when the x-bit

indications change, the interrupt is debounced along with them via the XBIT_DEB and

XBIT_THR bits.

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