COM90C66LJP View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

COM90C66LJP

ARCNET® Controller/Transceiver with AT® Interface and On-Chip RAM

SMSC -> Microchip 

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D0-D15

Data Register

I/O Address ODH

I/O Address 0CH Memory

Data Bus

High

Low

16

Address Pointer Register

I/O Address 0FH I/O Address 0EH

High

Low

1K x 16

RAM

11-Bit Counter

Memory

Address Bus

11

FIGURE 11 - SEQUENTIAL I/O MAPPED MEMORY ACCESS OPERATION

39

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