ICS1889Y Просмотр технического описания (PDF) - Integrated Circuit Systems

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ICS1889Y

100Base-FX Integrated PHYceiver™

Integrated Circuit Systems 

ICS1889

PHY Identifier Register (register 3)

BIT

Definition

When bit = 0 When bit = 1 Access Default

15

OUI bit 19 | s

14

OUI bit 20 | t

13

OUI bit 21 | u

12

OUI bit 22 | v

11

OUI bit 23 | w

10

OUI bit 24 | x

9

Manufacturer’s Model Number bit 5

8

Manufacturer’s Model Number bit 4

7

Manufacturer’s Model Number bit 3

6

Manufacturer’s Model Number bit 2

5

Manufacturer’s Model Number bit 1

4

Manufacturer’s Model Number bit 0

3

Revision Number bit 3

2

Revision Number bit 2

1

Revision Number bit 1

0

Revision Number bit 0

CW

0

CW

1

CW

1

CW

0

CW

0

CW

0

CW

0

CW

0

CW

0

CW

0

CW

0

CW

1

CW

0

CW

1

CW

0

CW

1

PHY Identifier Register (register 3)

Register 2 and Register 3 contain the 24 bit Organizationally

Unique Identifier (OUI), Manufacturers Model Number and

Revision Number. Integrated Circuit Systems’s 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

register (16:15) and then performing a write operation. At

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.

Manufacturer’s Model Number bits 5-0 (bits 9-4)

Model

1

2

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.

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.

13

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