LAN9313 datasheet(197/398 Pages) SMSC

197 / 398 page

Three Port 10/100 Managed Ethernet Switch with MII

Datasheet

SMSC LAN9313/LAN9313i

197

Revision 1.2 (04-08-08)

DATASHEET

Note 13.12

The default value of this field is determined by the BP_EN_strap_mii configuration strap.

The strap value is loaded during reset and can be re-written by the EEPROM Loader. Once

the EEPROM Loader re-writes the value, this register is updated with the new values. See

Section 4.2.4, "Configuration Straps," on page 45 for more information.

Note 13.13

The default value of this bit is determined by multiple strap settings. The strap values are

loaded during reset and can be re-written by the EEPROM Loader. Once the EEPROM

Loader re-writes the values, this register is updated with the new values. Refer to Section

6.2.3, "Flow Control Enable Logic," on page 60 for additional information.

Note 13.14

The default value of this field is determined by the FD_FC_strap_mii configuration strap.

The strap value is loaded during reset and can be re-written by the EEPROM Loader. Once

the EEPROM Loader re-writes the value, this register is updated with the new values. See

Section 4.2.4, "Configuration Straps," on page 45 for more information.

Note 13.15

This bit is RO when in MAC mode.

Note 13.16

The default value of this field is determined by the manual_FC_strap_mii configuration

strap. The strap value is loaded during reset and can be re-written by the EEPROM

Loader. Once the EEPROM Loader re-writes the value, this register is updated with the

new values. In MAC mode, this bit is not re-written by the EEPROM Loader and has a

default value of “1”. See Section 4.2.4, "Configuration Straps," on page 45 for more

information.

Port 0 Full-Duplex Manual Flow Control Select (MANUAL_FC_MII)

This bit toggles flow control selection between manual and auto-negotiation.

0: If auto-negotiation is enabled, the auto-negotiation function

determines the flow control of switch Port 0 (RX_FC_MII and

TX_FC_MII values ignored). If auto-negotiation is disabled, the

RX_FC_MII and TX_FC_MII values are used.

1: TX_FC_MII and RX_FC_MII bits determine the flow control of switch

Port 0 when in full-duplex mode

Note:

In MAC mode, this bit is forced high. The Virtual PHY is not

applicable in this mode and full-duplex flow control should be

controlled manually by the host based on the external PHYs Auto-

Negotiation results.

R/W

Note 13.15

Note 13.16

BITS

DESCRIPTION

TYPE

DEFAULT

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