ICS1889 datasheet(13/35 Pages) ICST

13 / 35 page

ICS1889

PHY Identifier Register (register 3)

Unique Identifier (OUI), Manufacturers Model Number and

Revision Number. Integrated Circuit Systemss OUI is used as

the default for registers 2 and 3.

These two registers can always be read and may be written by

setting the Command Override bit in the Configuration

power-up and reset they are set to Integrated Circuit Systems

OUI. By allowing these registers to be written, a systems

vendor may substitute their own OUI.

See register 2 for OUI formatting information.

Organizationally Unique Identifier

bits 19-24 (bits 15-10)

This field contains the upper 6 bits of the IEEE OUI. Bit 19 of

the OUI maps to bit 15 of the register.

Manufacturers Model Number bits 5-0 (bits 9-4)

Model

Part

ICS1889

ICS1890

Revision Number bits 3-0 (bits 3-0)

The revision number will be incremented each time the silicon

is significantly revised. Currently the device is at revision 1.

PHY Identifier Register (register 3)

BIT

Definition

When bit = 0

When bit = 1

Access

Default

OUI bit 19 | s

OUI bit 20 | t

OUI bit 21 | u

OUI bit 22 | v

OUI bit 23 | w

OUI bit 24 | x

Manufacturer’s Model Number bit 5

Manufacturer’s Model Number bit 4

Manufacturer’s Model Number bit 3

Manufacturer’s Model Number bit 2

Manufacturer’s Model Number bit 1

Manufacturer’s Model Number bit 0

Revision Number bit 3

Revision Number bit 2

Revision Number bit 1

Revision Number bit 0

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