PM8621 datasheet(45/184 Pages) PMC

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NSE-8G™ Standard Product Data Sheet

Preliminary

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

Document ID: PMC-2010850, Issue 1

Code Group

Name

Curr. RD-

abcdei fghj

Curr. RD+

abcdei fghj

Encoded Signals

Description

K29.7-

101110 1000

V5 byte, send one less byte request**

Floating Transparent Virtual Tributaries

K27.7-

110110 1000

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b00, IDATA[5] =

REI = ‘b0

K27.7+

001001 0111

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b00, IDATA[5] =

REI = ‘b1

K28.7-

001111 1000

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b01, IDATA[5] =

REI = ‘b0

K28.7+

110000 0111

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b01, IDATA[5] =

REI = ‘b1

K29.7-

101110 1000

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b10, IDATA[5] =

REI = ‘b0

K29.7+

010001 0111

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b10, IDATA[5] =

REI = ‘b1

K30.7-

011110 1000

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b11, IDATA[5] =

REI = ‘b0

K30.7+

100001 0111

V5 byte

IV5=1,

IDATA[0,4] = ERDI[1:0] = ‘b11, IDATA[5] =

REI = ‘b1

* Note there can be multiple V5s per SBI frame when in DS3 or E3 mode but only one

justification can occur per SBI frame. Positive and negative justification request through V5

required by the SBI336S interface should be limited to one per frame.

** Note fractional rate links are symmetric in the transmit and receive direction over SBI336S.

When using clock slave mode with a fractional rate link the clock master makes single byte

adjustments to the slaves rate once per frame.

9.3.2

Serial TelecomBus 8B/10B Character Encoding

Table 3 shows the mapping of TelecomBus control bytes and signals into 8B/10B control

characters. When the TelecomBus control signals conflict each other, the 8B/10B control

characters are generated according to the sequence of the table, with the characters at the top of

the table taking precedence over those lower in the table.

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