Philips Semiconductors

Product specification

SCN68562

Dual universal serial communications controller (DUSCC)

1995 May 01

4

ORDERING INFORMATION

DESCRIPTION

DWG #

DESCRIPTION

Serial Data Rate = 4Mbps Maximum

DWG #

48-Pin Plastic Dual In-Line Package (DIP)

SCN68562C4N48

SOT240-1

52-Pin Plastic Leaded Chip Carrier (PLCC) Package

SCN68562C4A52

SOT238-3

NOTE: See SCN26562/SCN68562 User’s Guide for detailed description of all the features.

BLOCK DIAGRAM

CHANNEL MODE

AND TIMING A/B

CTCRA/B

CTPRHA/B

CTPRLA/B

DPLL CLK

MUX A/B

DPLL A/B

BRG

COUNTER/

TIMER A/B

C/T CLK

MUX A/B

CTHA/B

CTLA/B

TRANSMIT A/B

TRANS CLK

MUX

TPRA/B

TTRA/B

TX SHIFT

REG

CRC

GEN

TRANSMIT

4 DEEP

FIFO

SPEC CHAR

GEN LOGIC

RECEIVER A/B

RPRA/B

RTRA/B

S1RA/B

RCVR CLK

MUX

S2RA/B

RCVR

SHIFT REG

RECEIVER

4 DEEP

FIFO

CRC

ACCUM

BISYNC

COMPARE

LOGIC

TxD A/B

RxD A/B

INTERFACE/

OPERATION

CONTROL

ICTSRA/B

GSR

CMR1A/B

ADDRESS

DECODE

DMA

CONTROL

CMR2A/B

OMRA/B

R/W

DECODE

CCRA/B

PCRA/B

RSRA/B

TRSRA/B

ICRA/B

IERA/B

IVR

IVRM

INTERRRUPT

CONTROL

OSCILLATOR

SPECIAL

FUNCTION

PINS

DMA INTERFACE

MPU

INTERFACE

BUS

BUFFER

D0-D7

DTACKN

RWN

A1-A6

CSN

RESETN

RTxDRQAN/GPO1AN

RTxDRQBN/GPO1BN

TxDRQAN/GPO2AN

TxDRQBN/GPO2BN

RTxDAKAN/GPI1AN

RTxDAKBN/GPI1BN

TxDAKAN/GPI2AN

TxDAKBN/GPI2BN

DTCN

DONEN

TRxCA/B

RTxCA/B

RTSBN/SYNOUTBN

RTSAN/SYNOUTAN

CTSA/BN

DCDBN/SYNIBN

DCDAN/SYNIAN

IRQN

IACKN

X1/CLK

X2/IDCN

DUSCC

LOGIC

CONTROL

SD00223

Figure 2. Block Diagram