LAN9312-NZW SMSC, LAN9312-NZW Datasheet - Page 230

• Manufacturer Part Number: LAN9312-NZW
• Description: Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9312-NZW

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 186 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.7 (06-29-10)
BITS
1
0
Port 1 Full-Duplex Transmit Flow Control Enable (TX_FC_1)
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)
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
Note 14.4 The default value of this field is determined by the BP_EN_strap_1 configuration strap. The
Note 14.5 The default value of this bit is determined by multiple strap settings. The strap values are
Note 14.6 The default value of this field is determined by the FD_FC_strap_1 configuration strap. The
Note 14.7 The default value of this field is determined by the manual_FC_strap_1 configuration strap.
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
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
6.2.3, "Flow Control Enable Logic," on page 58
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
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 40
Section 4.2.4, "Configuration Straps," on page 40
Section 4.2.4, "Configuration Straps," on page 40
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
230
for additional information.
for more information.
for more information.
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TYPE
R/W
R/W
SMSC LAN9312
DEFAULT
Note 14.6
Note 14.7
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