mk50h27 STMicroelectronics, mk50h27 Datasheet

mk50h27

Manufacturer Part Number

mk50h27

Description

Signalling System 7 Link Controller

Manufacturer

STMicroelectronics

Datasheet

1.MK50H27.pdf (56 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

mk50h27N

Manufacturer:

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

mk50h27Q-10

Manufacturer:

Quantity:

12 388

Company:

BOSTOCK HK LIMITED

Part Number:

mk50h27Q-10

Manufacturer:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

mk50h27Q-25

Manufacturer:

Quantity:

12 388

Company:

BOSTOCK HK LIMITED

Part Number:

mk50h27Q-25

Manufacturer:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

mk50h27Q-33

Quantity:

3 710

Company:

BOSTOCK HK LIMITED

Part Number:

mk50h27Q-33

Manufacturer:

Company:

BOSTOCK HK LIMITED

Part Number:

mk50h27Q-33/25/16

Manufacturer:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

mk50h27Q33B

Manufacturer:

NIC

Quantity:

2 028

Company:

BOSTOCK HK LIMITED

Part Number:

mk50h27Q33B

Manufacturer:

STMicroelectronics

Quantity:

10 000

Current page: 1 of 56
Download datasheet (413Kb)

SECTION 1 - FEATURES

September 1997

and Bellcore Signalling System Number 7 link

level protocols.

TTC JT-Q703 specification requirements

MK50H25 (X.25/LAPD), MK50H29 (SDLC),

and MK50H28(Frame Relay).

33), or 25 MHz (MK50H27 - 25).

protocol processing, 20 Mbps for transparent

HDLC mode, or up to 51 Mbps bursted

(gapped data clocks, non-continuous data).

length.

ing optional 5 SYSCLK DMA cycle (150 nS) at

33 MHz SYSCLK.

ods, including forced retransmission for PCR.

Signal Unit interval timers for Japanese SS7.

(number of flags between SU’s)

Programmable Watchdog Timers for RCLK

and TCLK (to detect absence of data clocks)

Complete Level 2 Implementation of SS7.

Compatible with 1988 CCITT, AT&T, ANSI,

Optional operation to comply with Japanese

Pin-for-pin and architecturally compatible with

System clock rates up to 33 MHz (MK50H27 -

Data rate up to 4 Mbps continuous for SS7

On chip DMA control with programmable burst

DMA transfer rate of up to 13.3 Mbytes/sec us-

Buffer Management includes:

Selectable BEC or PCR retransmission meth-

Handles all 7 SS7 Timers, plus the additional

Handles all SS7 frame formatting:

Programmable minimum Signal Unit spacing

Handles all sequencing and link control.

Selectable FCS of 16 or 32 bits.

Testing Facilities:

Programmable for full or half duplex operation

- Initialization Block

- Separate Receive and Transmit Rings

- Variable Descriptor Ring and Window Sizes.

- Zero bit insert and delete

- FCS generation and detection

- Frame delimiting with flags

- Internal Loopback

- Silent Loopback

- Optional Internal Data Clock Generation

- Self Test.

SECTION 2 - INTRODUCTION

The SGS - Thomson SS7 Signalling Link Control-

ler (MK50H27) is a VLSI semiconductor device

which provides a complete level 2 data communi-

cation control conforming to the CCITT, ANSI,

BELLCORE, and AT&T versions of SS7, as well

as options to allow conformance to TTC JT-Q703

(Japanese SS7). This includes signal unit format-

ting, transparency (so-called ”bit-stuffing”), error

recovery by two types of retransmission, error

monitoring, sequence number control, link status

control, and fill in signal unit generation.

One of the outstanding features of the MK50H27

is its buffer management which includes on-chip

DMA. This feature allows users to handle multi-

ple MSU’s of receive and transmit data at a time.

(A conventional data link control chip plus a sepa-

rate DMA chip would handle data for only a single

block at a time.) The MK50H27 will move multiple

blocks of receive and transmit data directly into

Available in 52 pin PLCC, 84 pin PLCC(for use

with external ROM), or 48 pin DIP packages.

Signalling System 7

PLCC 52

DIP48

Link Controller

MK50H27

1/56

Related parts for mk50h27

Related keywords

mk50h27 datasheet
mk50h27 data sheet
mk50h27 pdf datasheet
mk50h27 component
mk50h27 part
mk50h27 distributor
mk50h27 RoHS
mk50h27 datasheet download