LAN9303MI-AKZE Datasheet, PDF (165/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
BITS
2
1
0
DESCRIPTION
TYPE
Port 1 Full-Duplex Receive Flow Control Enable (RX_FC_1)
R/W
When the MANUAL_FC_1 bit is set, or Auto-Negotiation is disabled, this bit
enables/disables the detection of full-duplex Pause packets on switch Port 1.
0: Disable flow control receive
1: Enable flow control receive
Port 1 Full-Duplex Transmit Flow Control Enable (TX_FC_1)
R/W
When the MANUAL_FC_1 bit is set, or Auto-Negotiation is disabled, this bit
enables/disables full-duplex Pause packets to be generated on switch Port
1.
0: Disable flow control transmit
1: Enable flow control transmit
Port 1 Full-Duplex Manual Flow Control Select (MANUAL_FC_1)
Note 13.7
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 1 (RX_FC_1 and TX_FC_1
values ignored). If auto-negotiation is disabled, the RX_FC_1 and
TX_FC_1 values are used.
1: TX_FC_1 and RX_FC_1 bits determine the flow control of switch Port
1 when in full-duplex mode.
DEFAULT
Note 13.6
Note 13.6
Note 13.8
Note:
In Port 1 MII PHY, RMII PHY, or MII MAC mode, this bit is forced
high. There is no auto-negotiation capability. Full-duplex flow
control should be controlled manually by the host, if desired.
Note 13.4
The default value of this field is determined by the BP_EN_strap_1 configuration strap. 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.
See Section 4.2.4, "Configuration Straps," on page 52 for more information.
Note 13.5
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 70 for additional information.
Note 13.6
The default value of this field is determined by the FD_FC_strap_1 configuration strap. 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.
See Section 4.2.4, "Configuration Straps," on page 52 for more information.
Note 13.7 The type is determined by the operating mode. In Port 1 MII PHY, RMII PHY, or MII MAC
mode, the type is RO. It is R/W for all other modes.
Note 13.8
The default value of this field is determined by the operating mode. In Port 1 MII PHY, RMII
PHY, or MII MAC mode, it is 1, and the bit is not re-written by the EEPROM Loader. For
all other operating modes, the default value is determined by the manual_FC_strap_1
configuration strap. 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. See Section 4.2.4, "Configuration Straps," on page 52 for more
information.
SMSC LAN9303M/LAN9303Mi
165
DATASHEET
Revision 1.5 (07-08-11)