TNETE2004PAC datasheet(23/46 Pages) TI

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TNETE2004

MDIO-MANAGED QuadPHY

FOUR 10BASE-T PHYSICAL-LAYER INTERFACES

SPWS023D – OCTOBER 1996 – REVISED OCTOBER 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TNETE2004 status register – QuadPHY_sts at 0x12

BYTE 1

BYTE 0

RESERVED

Figure 13. TNETE2004 Status Register – QuadPHY_sts at 0x12

Table 9. TNETE2004 Status Register (QuadPHY_sts at 0x12) Bit Functions

BIT

FUNCTION

DIRECTION†

NO.

NAME

FUNCTION

DIRECTION†

MINT

MII interrupt. MINT indicates an MII-interrupt condition. The MII-interrupt request is activated (held)

until the register causing the interrupt is read. Writing a 0 to MINT has no effect. MINT is set to 1

when:

D PHOK is set to 1.

D LINK has changed since it was read last.

D RFLT is set to 1.

D JABBER is set to 1.

D POLOK is set to 1.

D PAGERX is set to 1.

D ACOMPLETE is set to 1.

PHOK

Power high OK. PHOK indicates that the PHY reference oscillator has started up correctly.

PHY-sourced clocks (RXCLK and TXCLK) are not valid until PHOK is asserted. PHOK is common

to all PHYs.

POLOK

Polarity OK. When POLOK is high (default), the 10BASE-T PHY is receiving valid (noninverted) link

pulses. If POLOK goes low, it indicates that a sequence of seven inverted link pulses has been

detected.

12–0

RESERVED

Reserved. Read as 0

† RO = read only

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