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Datasheet – SMSC LAN9311i User Manual

Page 225

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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Datasheet

SMSC LAN9311/LAN9311i

225

Revision 1.4 (08-19-08)

DATASHEET

13

Alternate MAC Address 1 Enable Port 0(Host MAC)
(MAC_ALT1_EN_MII)
This bit enables/disables the alternate MAC address 1 on Port 0.

0: Disables alternate MAC address on Port 0
1: Enables MAC address 01:00:5E:00:01:82 as a PTP address on Port 0

R/W

0b

12

Alternate MAC Address 2 Enable Port 0(Host MAC)
(MAC_ALT2_EN_MII)
This bit enables/disables the alternate MAC address 2 on Port 0.

0: Disables alternate MAC address on Port 0
1: Enables MAC address 01:00:5E:00:01:83 as a PTP address on Port 0

R/W

0b

11

Alternate MAC Address 3 Enable Port 0(Host MAC)
(MAC_ALT3_EN_MII)
This bit enables/disables the alternate MAC address 3 on Port 0.

0: Disables alternate MAC address on Port 0
1: Enables MAC address 01:00:5E:00:01:84 as a PTP address on Port 0

R/W

0b

10

User Defined MAC Address Enable Port 0(Host MAC)
(MAC_USER_EN_MII)
This bit enables/disables the auxiliary MAC address on Port 0. The auxiliary
address is defined via the 1588_AUX_MAC_HI and 1588_AUX_MAC_LO
registers.

0: Disables auxiliary MAC address on Port 0
1: Enables auxiliary MAC address as a PTP address on Port 0

R/W

0b

9

Lock Enable RX Port 0(Host MAC) (LOCK_RX_MII)
This bit enables/disables the RX lock. This lock prevents a 1588 capture
from overwriting the Clock, UUDI and Sequence ID values if the 1588 RX
interrupt for Port 0 is ready set due to a previous capture.

0: Disables RX Port 0 Lock
1: Enables RX Port 0 Lock

Note:

For Port 0, receive is defined as data from the switch fabric, while
transmit is to the switch fabric.

R/W

1b

8

Lock Enable TX Port 0(Host MAC) (LOCK_TX_MII)
This bit enables/disables the TX lock. This lock prevents a 1588 capture
from overwriting the Clock, UUDI and Sequence ID values if the 1588 TX
interrupt for Port 0 is ready set due to a previous capture.

0: Disables TX Port 0 Lock
1: Enables TX Port 0 Lock

Note:

For Port 0, receive is defined as data from the switch fabric, while
transmit is to the switch fabric.

R/W

1b

7

RESERVED

RO

-

6

Lock Enable GPIO 9 (LOCK_GPIO_9)
This bit enables/disables the GPIO 9 lock. This lock prevents a 1588 capture
from overwriting the Clock value if the 1588_GPIO9 interrupt in the

1588

Interrupt Status and Enable Register (1588_INT_STS_EN)

is already set

due to a previous capture.

0: Disables GPIO 9 Lock
1: Enables GPIO 9 Lock

R/W

1b

BITS

DESCRIPTION

TYPE

DEFAULT

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