SCN2652 データシートの表示（PDF） - Philips Electronics

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SCN2652

Multi-protocol communications controller(MPCC)

Philips Electronics 

Philips Semiconductors

Product specification

Multi-protocol communications controller (MPCC) SCN2652/SCN68652

DESCRIPTION

The SCN2652/68652 Multi-Protocol Communications Controller

(MPCC) is a monolithic n-channel MOS LSI circuit that formats,

transmits and receives synchronous serial data while supporting

bit-oriented or byte control protocols. The chip is TTL compatible,

operates from a single +5V supply, and can interface to a processor

with an 8 or 16-bit bidirectional data bus.

APPLICATIONS

• Intelligent terminals

• Line controllers

• Network processors

• Front end communications

• Remote data concentrators

• Communication test equipment

• Computer to computer links

FEATURES

• DC to 2Mbps data rate

• Bit-oriented protocols (BOP): SDLC, ADCCP, HDLC

• Byte-control protocols (BCP): DDCMP, BISYNC (external CRC)

• Programmable operation

– 8 or 16-bit tri-state data bus

– Error control – CRC or VRC or none

– Character length – 1 to 8 bits for BOP or 5 to 8 bits for BCP

– SYNC or secondary station address comparison for BCP-BOP

– Idle transmission of SYNC/FLAG or MARK for BCP-BOP

• Automatic detection and generation of special BOP control

sequences, i.e., FLAG, ABORT, GA

• Zero insertion and deletion for BOP

• Short character detection for last BOP data character

• SYNC generation, detection, and stripping for BCP

• Maintenance mode for self-testing

• TTL compatible

• Single +5V supply

PIN CONFIGURATION

CE 1

40 MM

RxC 2

39 TxC

RxSI 3

38 TxSQ

S/F 4

37 TxE

RxA 5

36 TxU

RxDA 6

35 TxBE

RxSA 7

34 TxA

RxE 8

33 RESET

GND 9

32 VCC

DB08 10

DIP

31 DB00

DB09 11

30 DB01

DB10 12

29 DB02

DB11 13

28 DB03

DB12 14

27 DB04

DB13 15

26 DB05

DB14 16

25 DB06

DB15 17

24 DB07

R/W 18

23 DBEN

A2 19

22 BYTE

A1 20

21 A0

TOP VIEW

INDEX

CORNER

6

7

1

40

39

PLCC

17

18

TOP VIEW

29

28

Pin Function

1 NC

2 CE

3 RxC

4 RxSI

5 S/F

6 RxA

7 RxDA

8 RxSA

9 RxE

10 GND

11 DB08

12 NC

13 DB09

14 DB10

15 DB11

16 DB12

17 DB13

18 DB14

19 DB15

20 R/W

21 A2

22 A1

Pin Function

23 NC

24 A0

25 BYTE

26 DBEN

27 DB07

28 DB06

29 DB05

30 DB04

31 DB03

32 DB02

33 DB01

34 NC

35 DB00

36 VCC

37 RESET

38 TxA

39 TxBE

40 TxU

41 TxE

42 TxSQ

43 TxC

44 MM

NOTE: DB00 is least significant bit, highest number

(that is, DB15, A2) is most significant bit.

SD00057

Figure 1. Pin Configuration

1995 May 01

2

853-1068 15179

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