COM20022I3V-HT View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

COM20022I3V-HT

10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM

SMSC -> Microchip 

Chapter 10 Appendix B

10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM

Datasheet

ISA Bus

AEN

SA15-SA4

SD15-SD0

LS688x2

nG

12 bit

Comparators

P

Q

I/O Address Seeting (DIP Switches)

P=Q

12

12

LS245x2

A

16 bit Bus

Transceivers

A

B

16

16

DIR

nG

COM20022

nCS

D15-D0

nIOR

nIOW

SA2-SA0

3

3

IRQm

5V

nIOCS16

DRQn

nDACK

TC

nREFRESH

RESETDRV

Schmitt-Trigger Buffer

Open-Collector Buffer

nRD

nWR

A2-A0

nINTR

nIOCS16

DREQ

nDACK

TC

nREFEX

nRESET

Figure 10.1 - Example of Interface of Circuit Diagram to ISA Bus

Revision 03-08-07

Page 72

DATASHEET

SMSC COM20022I 3.3V Rev.C

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