RTL8201 데이터 시트보기 (PDF) - Realtek Semiconductor

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RTL8201

REALTEK SINGLE CHIP SINGLE PORT 10/100MBPS FAST ETHERNET PHYCEIVER

Realtek Semiconductor 

RTL8201(L)

1:<2>

1:<1>

1:<0>

Link Status

Jabber Detect

Extended

Capability

Link Status: The RTL8201L will return a ‘1’ on bit 2 when the link

state machine is in Link Pass, indicating that a valid link has been

established. Otherwise, it will return ‘0’. When a link failure occurs

after the link pass state has been entered, the Link Status bit will be

latched at ‘0’ and will remain so until the bit is read. After the bit is

read, it becomes ‘1’ if the Link Pass state has been entered again.

1: Valid link established

0: No valid link established

Jabber Detect: The RTL8201L will return a ‘1’ on bit 1 if a jabber

condition has been detected. After the bit is read, or if the chip is reset,

it reverts to ‘0’. This is for 10Base-T only.

1: Jabber condition detected

0: No jabber condition detected

Extended Capability: The RTL8201L supports extended capability

registers, and will return a ‘1’ when bit 0 is read. Several extended

registers have been implemented in the RTL8208, and their bit functions

are defined later in this section.

1: Extended register capability

0: Basic register capability only

6.3. Register 2 PHY Identifier 1

0, RO

0, RO

1, RO

The PHY Identifier Registers #1 and #2 together form a unique identifier for the PHY section of this device. The Identifier

consists of a concatenation of the Organizationally Unique Identifier (OUI), the vendor's model number and the model

revision number. A PHY may return a value of zero in each of the 32 bits of the PHY Identifier if desired. The PHY Identifier

is intended to support network management.

Address

2:<15;0>

Name

PHYID1

Description/Usage

PHY identifier ID for software recognize RTL8201

Default/Attribute

0000, RO

6.4. Register 3 PHY Identifier 2

Address

3:<15;0>

Name

PHYID2

Description/Usage

PHY identifier ID for software recognize RTL8201

Default/Attribute

8201, RO

2002-01-18

10

Rev.1.04

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