PM5357 datasheet(39/432 Pages) PMC

39 / 432 page

PRODUCTION

S/UNI-622-POS

PMC-Sierra, Inc.

PM5357

S/UNI-622-POS

DATASHEET

PMC-1980911

ISSUE 5

SATURN USER NETWORK INTERFACE (622-POS)

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

No.

Function

FPOUT

Output

AC14

In parallel interface operation, the parallel outgoing

stream frame pulse (FPOUT) marks the frame

alignment on the POUT[7:0] bus. FPOUT marks the

first synchronous payload envelope byte after the

J0/Z0 bytes. FPOUT is updated on the rising edge of

PTCLK.

When parallel interface operation is not used, FPOUT

may be used for 1+1 APS operation. In this mode,

FPOUT marks the first synchronous payload

envelope byte after the J0/Z0 bytes. FPOUT is

updated on the rising edge of TCLK. See the

Operation section for more discussion of 1+1 APS.

POUT[0]

POUT[1]

POUT[2]

POUT[3]

POUT[4]

POUT[5]

POUT[6]

POUT[7]

Output

AA14

AB14

AC13

AB13

AA13

Y13

AB12

AA12

In parallel interface operation, the parallel outgoing

stream, (POUT[7:0]) carries the scrambled STS-

12c/STM-4-4c or STS-3c/STM-1 stream in byte-serial

format. POUT[7] is the most significant bit

(corresponding to bit 1 of each serial word, the first bit

transmitted). POUT[0] is the least significant bit

(corresponding to bit 8 of each serial word, the last bit

transmitted). POUT[7:0] is updated on the rising

edge of PTCLK.

When parallel interface operation is not used,

POUT[7:0] may be used for 1+1 APS operation. In

this mode, POUT[7:0] carries the byte-serial STS-

12c/STM-4-4c transmit path and updates on the rising

edge of TCLK. See the Operation section for more

discussion of 1+1 APS.

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