PM4328-PI PMC-Sierra, Inc., PM4328-PI Datasheet - Page 72

• Manufacturer Part Number: PM4328-PI
• Description: Framer, T1|E1|T3 Standard Format, 324-BGA
• Manufacturer: PMC-Sierra, Inc.

STANDARD PRODUCT
DATASHEET
PMC-2011596
PROPRIETARY AND CONFIDENTIAL
FA S
found
nex t fram e
CR CMF A
NF AS
found
nex t fram e
Figure 7: CRC Multiframe Alignment Algorithm
FA S
found
Out of Frame
FAS_Find_1
FAS_Find_2
CRCto CRC
Interworking
NFAS_Find
BFA
Start 400ms timer
and 8ms timer
NF AS
not found
nex t fram e
FA S
not found
nex t fram e
3 consecutive FASor NFAS
excessive CRC errors
Reset BFA to
most recently
found alignment
errors; manual reframe; or
8ms ex pire
ISSUE 1
CR CM FA_ Par
(Op tional setting)
8m s expire and
NOT( 400 ms exp ire)
NF AS
found
nex t fram e
FA S
found
nex t fram e
CR CM FA_ Par
59
FA S
found
NFAS_Find_Par
FAS_Find_2_Par
FAS_F ind_1_Pa r
CRCto non-C RC
Interworking
BFA_Par
Start 8ms timer
NF AS
not found
nex t fram e
FA S
not found
nex t fram e
HIGH DENSITY T1/E1 FRAMER
400m s
expire
AND M13 MULTIPLEXER
PM4328 TECT3