PM5366 datasheet(202/267 Pages) PMC

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PRELIMINARY

PM5366 TEMAP-84

DATASHEET

PMC-2010672

ISSUE 1

HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

190

Table 35

- E3 Frame Stuffing Format

6*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

5*R

FAS

11*D

5*R

12*D

5*R

12*D

5*R

12*D

E3 asynchronous timing is compensated via the H3 octet. E3 link rate

adjustments are optionally passed across the SBI via the Linkrate octet. E3

alarm conditions are optionally passed across the SBI bus via the Linkrate octet.

Flexible Bandwidth Mapping

When the OPMODE_SPEx[2:0] register bits for an SPE are binary 100, the SBI

is configured to transport an arbitrary bandwidth up to the capacity of an SPE. In

this mode the SDPL and SAPL signals identify individual valid bytes. For each

SPE, every third byte in columns 16 through 270, inclusive, has the potential for

presenting data. Be aware that although columns 13 though 15 carry no

payload, the byte positions for rows 1 through 4 are driven by the Drop bus with

SDPL unconditionally low.

Transparent VT1.5/TU11 Mapping

VT1.5 and TU11 virtual tributaries, TVT1.5s, are transported across the SBI bus

in a similar manner to the T1 tributary mapping. Table 36 shows the transparent

structure where “I” is used to indicate information bytes. There are two options

when carrying virtual tributaries on the SBI bus, the primary difference being how

the floating V5 payload is located.

The first option is locked TVT mode which carries the entire VT1.5/TU11 virtual

tributary indicated by the shaded region in Table 36. Locked is used to indicate

that the location of the V1,V2 pointer is locked. The virtual tributary must have a

valid V1,V2 pointer to locate the V5 payload. In this mode the V5 indicator and

payload signals, SDV5, SAV5, SDPL and SAPL, may be generated but must be

ignored by the receiving device. In locked mode timing is always sourced by the

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