m28529-12 Mindspeed Technologies, m28529-12 Datasheet

m28529-12

Manufacturer Part Number

m28529-12

Description

Inverse Multiplexing For Atm Ima Family

Manufacturer

Mindspeed Technologies

Datasheet

1.M28529-12.pdf (309 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

M28529-12

Manufacturer:

MINDSPEE

Quantity:

1 238

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Distinguishing Features

• Complete IMA solution in a single package

• Field tested software available

• Up to 32 IMA groups with 1-32 links/group

• Supports 50 ms (beyond the IMA standard requirements for 25 ms)

• Memory expandable to 2 M bytes via external bus

• UTOPIA level 2 interfaces

• Glueless serial and interleaved highway interfaces to Mindspeed

• Octet or Bit level cell delineation

• Variable link data rates (64K–8.192 Mb/s)

M28525/9 Data Sheet

Inverse Multiplexing for ATM (IMA) Family

The M2852x family of devices provides system designers with a complete integrated IMA solution for up to 32 ports.

All devices include a Transmission Convergence block to perform cell delineation, 512 K internal RAM to meet ATM

forum requirements for differential delay compensation and a dual mode (UTOPIA or Serial) PHY layer interface.

Source code for all required software functions is available from Mindspeed. The M28529 supports 32 IMA groups

with 1-32 links per group.

The TC block is capable of bit level cell delineation, which allows for direct connection DSL serial data streams

without a frame sync pulse. Individual ports can be operated in a 'pass thru' mode without the IMA overhead.

The M28529 provides direct connection to 32 serial/interleaved highway links or a PHY side UTOPIA bus. In

addition, an external memory bus allows the differential delay memory to access up to 2 Mbytes of external

RAM.The M28529 supports both version 1.0 and 1.1 of IMA standard AF-PHY-0086.001

28529-DSH-001-K

differential delay with 512K Internal memory

Framers

• 16 port, M28525

• 32 port, M28529

* N o t e : T h e M 2 8 5 2 5 o n l y s u p p o r t s 1 6 T C P o r t s

M 2 8 5 2 9

I n t e r n a l

5 1 2 K x 8

S R A M

IM A c l o c ks

D if f e r e n t ia l D e la y

m e m o r y in t e r f a c e

T x B lo c k a n d

R x B lo c k a n d

P a s s t h r o u g h

e x tm e m s e l p in

E n g i n e

I M A

E x t e rn a l M e m o r y

Mindspeed Proprietary and Confidential

Mindspeed Technologies

I n t e r f a c e

Functional Block Diagram

J T A G

B l o c k

I M A

I n t e r f a c e

M i c r o

C o u n te r s

T C

O n e S e c

T C B l o c k

T C S t a t u s

R e g i s te r s

p r o c e s s o r

C l o c ks

M i c r o

C e ll

L in e in t e r f a c e 3 0

L in e in t e r f a c e 3 1

L in e in t e r f a c e

T C C o n tr o l

R e g i s te r s

September 2007

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