LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 234

• Manufacturer Part Number: LAN9311-NU
• Description: IC ETHER SW 2PRT 16BIT 128-VTQFP
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9311-NU

• Controller Type: Ethernet Switch Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Maximum Operating Temperature: + 70 C
• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• For Use With: 638-1076 - EVALUATION BOARD LAN9311-NU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1075

Revision 1.7 (06-29-10)
14.2.6.3
BITS
31:8
7
6
5
4
3
2
RESERVED
Port 0 Hard-wired Flow Control (HW_FC_MII)
When set to “1”, the Host MACs RX FIFO level is connected to the switch
engine’s transmitter and the switch engines RX FIFO level is connected to
the Host MACs transmitter. This achieves lower latency flow control.
Note:
Port 0 Backpressure Enable (BP_EN_MII)
This bit enables/disables the generation of half-duplex backpressure on
switch Port 0.
0: Disable backpressure
1: Enable backpressure
Port 0 Current Duplex (CUR_DUP_MII)
This bit indicates the actual duplex setting of the switch Port 0.
0: Full-Duplex
1: Half-Duplex
Port 0 Current Receive Flow Control Enable (CUR_RX_FC_MII)
This bit indicates the actual receive flow setting of switch Port 0
0: Flow control receive is currently disabled
1: Flow control receive is currently enabled
Port 0 Current Transmit Flow Control Enable (CUR_TX_FC_MII)
This bit indicates the actual transmit flow setting of switch Port 0.
0: Flow control transmit is currently disabled
1: Flow control transmit is currently enabled
Port 0 Receive Flow Control Enable (RX_FC_MII)
When the MANUAL_FC_MII bit is set, or Virtual Auto-Negotiation is
disabled, this bit enables/disables the detection of full-duplex Pause packets
on switch Port 0.
0: Disable flow control receive
1: Enable flow control receive
Port 0(Host MAC) Manual Flow Control Register (MANUAL_FC_MII)
This read/write register allows for the manual configuration of the switch Port 0(Host MAC) flow control.
This register also provides read back of the currently enabled flow control settings, whether set
manually or Auto-Negotiated. Refer to
additional information.
Note: The flow control values in the
All other flow control methods must be disabled when using this
feature. (MANUAL_FC_MII should be set, TX_FC_MII,
RX_FC_MII, and BP_EN_MII should be cleared. FCANY, FCADD,
FCBRD, and FCMULT in the AFC_CFG register should be
cleared).
Register (VPHY_AN_ADV)," on page 253
Offset:
1A8h
DESCRIPTION
DATASHEET
Section 14.2.8.5, "Virtual PHY Auto-Negotiation Advertisement
Section 6.2.3, "Flow Control Enable Logic," on page 58
234
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Size:
are not affected by the values of this register.
32 bits
TYPE
R/W
R/W
R/W
SMSC LAN9311/LAN9311i
RO
RO
RO
RO
Note 14.12
Note 14.13
Note 14.13
Note 14.13
Note 14.14
DEFAULT
Datasheet
0b
-
for