LAN9313 Datasheet, PDF (197/398 Pages) SMSC Corporation – Three Port 10/100 Managed Ethernet Switch with MII

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
BITS
DESCRIPTION
TYPE
0 Port 0 Full-Duplex Manual Flow Control Select (MANUAL_FC_MII)
R/W
This bit toggles flow control selection between manual and auto-negotiation. Note 13.15
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.
DEFAULT
Note 13.16
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.
SMSC LAN9313/LAN9313i
197
DATASHEET
Revision 1.2 (04-08-08)