PM8313 datasheet(119/192 Pages) PMC

119 / 192 page

PM8313 D3MX

DATA SHEET

PMC-920702

ISSUE 5

M13 MULTIPLEXER

109

EXZDET=0, five LCVs would be indicated for this string (i.e. one LCV for

every 3 consecutive zeros).

EXZSO:

The EXZSO bit enables only summed zero occurrences to be accumulated in

the PMON EXZS Count Registers. When EXZSO is set to logic 1, any

excessive zeros occurrences over an 85 bit period increments the PMON

EXZS counter by one. When EXZSO is set to logic 0, summed LCVs are

accumulated in the PMON EXZS Count Registers. A summed LCV is defined

as the occurrence of either BPVs not part of a valid B3ZS signature or 3

consecutive zeros (or excessive zeros if EXZDET=1) occurring over an 85 bit

period; each summed LCV occurrence increment the PMON EXZS counter

by one.

BPVO:

The BPVO bit enables only bipolar violations to indicate line code violations

and be accumulated in the PMON LCV Count Registers. When BPVO is set

to logic 1, only BPVs not part of a valid B3ZS signature generate an LCV

indication and increment the PMON LCV counter. When BPVO is set to logic

0, both BPVs not part of a valid B3ZS signature, and either 3 consecutive

zeros or excessive zeros generate an LCV indication and increment the

PMON LCV counter.

AISONES:

The AISONES bit controls the pattern used to detect the alarm indication

signal (AIS) when both AISPAT and AISC bits in DS3 FRMR Configuration

bit is ignored. When a logic 0 is written to AISONES, the algorithm checks

that a framed all-ones payload pattern (1111...) signal is observed for a

period of time before declaring AIS. Only the payload bits are observed to

follow an all-ones pattern, the overhead bits (X, P, M, F, C) are ignored. When

a logic 1 is written to AISONES, the algorithm checks that an unframed all-

ones pattern (1111...) signal is observed for a period of time before declaring

AIS. In this case all the bits, including the overhead, are observed to follow

an all-ones pattern. The valid combinations of AISPAT, AISC, and AISONES

bits are summarized below:

PM8313 Datasheet(PDF) 119 Page - PMC-Sierra, Inc