ENC424J600-IPT datasheet(81/168 Pages) MICROCHIP

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 2010 Microchip Technology Inc.

DS39935C-page 79

ENC424J600/624J600

EIDLED: ETHERNET ID STATUS/LED CONTROL REGISTER

R/W-0

R/W-1

R/W-0

R/W-1

R/W-0

LACFG3

LACFG2

LACFG1

LACFG0

LBCFG3

LBCFG2

LBCFG1

LBCFG0

bit 15

bit 8

R-0

R-1

RRRR

DEVID2

DEVID1

DEVID0

REVID4

REVID3

REVID2

REVID1

REVID0

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 15-12,

bit 11-8

LACFG<3:0>:

LEDA Configuration bits and

LBCFG<3:0:

LEDB Configuration bits

1111

= Display link and speed state, transmit and receive events(1)

1110

= Display link and duplex state, transmit and receive events(1)

1101

= Reserved

1100

= Display link state, collision events; pin is driven high when a link is present and driven low

temporarily when a collision occurs

1011

= Display link state, transmit and receive events; pin is driven high when a link is present and

driven low while a packet is being received or transmitted

1010

= Display link state, receive events; pin is driven high when a link is present and driven low while

a packet is being received

1001

= Display link state, transmit events; pin is driven high when a link is present and driven low while

a packet is being transmitted

1000

= Display speed state; pin is driven high when in 100 Mbps mode and a link is present

0111

= Display duplex state; pin is driven high when the PHY is in full duplex (PHYDPX (ESTAT<10>)

is ‘1’) and a link is present

0110

= Display transmit and receive events; pin is driven high while a packet is either being received

or transmitted

0101

= Display receive events; pin is driven high while a packet is being received

0100

= Display transmit events; pin is driven high while a packet is being transmitted

0011

= Display collision events; pin is temporarily driven high when a collision occurs

0010

= Display link state; pin is driven high when linked

0001

= On (pin is driven high)

0000

= Off (pin is driven low)

bit 7-5

DEVID<2:0>:

Device ID bits

001

= ENC624J600 family device

bit 4-0

REVID<4:0>:

Silicon Revision ID bits

Indicates current silicon revision.

Note 1:

These configurations require that a bi-color LED be connected between the LEDA and LEDB pins, and

that LACFG<3:0> and LBCFG<3:0> be set to the same value. See Section 2.5.1 “Using Bi-Color

LEDs”

for detailed information.

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