PM8313 datasheet(118/192 Pages) PMC

118 / 192 page

PM8313 D3MX

DATA SHEET

PMC-920702

ISSUE 5

M13 MULTIPLEXER

108

Bit

Type

Function

Default

Bit7

Unused

Bit6

Unused

Bit5

R/W

AISONES

Bit4

R/W

BPVO

Bit3

R/W

EXZSO

Bit2

R/W

EXZDET

Bit1

R/W

SALGO

Bit0

R/W

DALGO

DALGO:

The DALGO bit determines the criteria used to decode a valid B3ZS

signature. When DALGO is set to logic 1, a valid B3ZS signature is declared

and 3 zeros substituted whenever a zero followed by a bipolar violation of the

opposite polarity to the last observed BPV is seen. When the DALGO bit is

set to logic 0, a valid B3ZS signature is declared and the 3 zeros are

substituted whenever a zero followed by a bipolar violation is observed.

SALGO:

The SALGO bit determines the criteria used to establish a valid B3ZS

signature used to map BPVs to line code violation indications. Any BPV that

is not part of a valid B3ZS signature is indicated as an LCV. When the

SALGO bit is set to logic 1, a valid B3ZS signature is declared whenever a

zero followed by a bipolar violation is observed. When SALGO is set to logic

0, a valid B3ZS signature is declared whenever a zero followed by a bipolar

violation of the opposite polarity to the last observed BPV is seen.

EXZDET:

The EXZDET bit determines the type of zero occurrences to be included in

the LCV indication. When EXZDET is set to logic 1, the occurrence of an

excessive zero generates a single pulse indication that is used to indicate an

LCV. When EXZDET is set to logic 0, every occurrence of 3 consecutive zeros

generates a pulse indication that is used to indicate an LCV. For example, if a

sequence of 15 consecutive zeros were received, with EXZDET=1 only a

single LCV would be indicated for this string of excessive zeros; with

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