TC9204-DS-R05 datasheet(43/49 Pages) ETC1

43 / 49 page

TC9204M

Preliminary Data Sheet

10.4.3

Physical Layer’s Register Address Register

Confidential.

43/49

July 29, 2003

TC9204M-DS-R05

- Address: 73h

7 6 5 4 3 2 1 0

RegAddress(4-0)

not used

RegAddress

Bit(s)

Field

Description

4 – 0

RegAddress

Physical layer device’s register address register

7 – 5

not used

RegAddress

– Contains a 5 bit word used as register address in MDIO operations.

10.4.4

IO Status Control Register

- Address: 74h

7 6 5 4 3 2 1 0

RnotW

ValidDataRead

MDIOError

not used

IOControl

Bit(s)

Field

Description

RnotW

Operation code

ValidDataRead

Valid Data Read

MDIOError

MDIO Error

3 – 7

not used

RnotW

– Operation Code. Setting this bit to ‘1’ will select read operation otherwise will

select write operation. MDIO Read / Write operation is started by performing a

virtual EEPROM write to IOControl register.

ValidDataRead

– Indicates if DataReadReg register contains valid data.

‘1’- data valid

‘0’- read not performed yet

MDIOError

– This bit signals errors on MDIO line.

‘1’- MDIO error.

‘0’- MDIO read successful.

TC9204-DS-R05 数据表(PDF) 43 Page - List of Unclassifed Manufacturers

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TC9204-DS-R05 数据表(PDF) 43 Page - List of Unclassifed Manufacturers

TC9204-DS-R05 数据表(HTML) 43 Page - List of Unclassifed Manufacturers

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