EVB9311 SMSC, EVB9311 Datasheet - Page 232
EVB9311
Manufacturer Part Number
EVB9311
Description
EVALUATION BOARD LAN9311-NU
Manufacturer
SMSC
Series
0133r
Datasheet
1.LAN9311-NU.pdf
(460 pages)
Specifications of EVB9311
Main Purpose
Interface, Ethernet
Embedded
No
Utilized Ic / Part
LAN9311
Primary Attributes
2 Ports, 100BASE-TX/10BASE-T, Managed
Secondary Attributes
2 PHYs with HP Auto-MDIX, Auto- Flow Control, 32-bit CRC, MDI/MDI-X
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
638-1076
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Revision 1.7 (06-29-10)
14.2.6.2
BITS
31:7
6
5
4
3
2
1
0
RESERVED
Port 2 Backpressure Enable (BP_EN_2)
This bit enables/disables the generation of half-duplex backpressure on
switch Port 2.
0: Disable backpressure
1: Enable backpressure
Port 2 Current Duplex (CUR_DUP_2)
This bit indicates the actual duplex setting of switch Port 2.
0: Full-Duplex
1: Half-Duplex
Port 2 Current Receive Flow Control Enable (CUR_RX_FC_2)
This bit indicates the actual receive flow setting of switch Port 2.
0: Flow control receive is currently disabled
1: Flow control receive is currently enabled
Port 2 Current Transmit Flow Control Enable (CUR_TX_FC_2)
This bit indicates the actual transmit flow setting of switch Port 2.
0: Flow control transmit is currently disabled
1: Flow control transmit is currently enabled
Port 2 Full-Duplex Receive Flow Control Enable (RX_FC_2)
When the MANUAL_FC_2 bit is set, or Auto-Negotiation is disabled, this bit
enables/disables the detection of full-duplex Pause packets on switch Port 2.
0: Disable flow control receive
1: Enable flow control receive
Port 2 Full-Duplex Transmit Flow Control Enable (TX_FC_2)
When the MANUAL_FC_2 bit is set, or Auto-Negotiation is disabled, this bit
enables/disables full-duplex Pause packets to be generated on switch Port
2.
0: Disable flow control transmit
1: Enable flow control transmit
Port 2 Full-Duplex Manual Flow Control Select (MANUAL_FC_2)
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 2 (RX_FC_2 and TX_FC_2
values ignored). If auto-negotiation is disabled, the RX_FC_2 and
TX_FC_2 values are used.
1: TX_FC_2 and RX_FC_2 bits determine the flow control of switch Port
2 when in full-duplex mode
Port 2 Manual Flow Control Register (MANUAL_FC_2)
This read/write register allows for the manual configuration of the switch Port 2 flow control. This
register also provides read back of the currently enabled flow control settings, whether set manually
or Auto-Negotiated. Refer to
information.
Note: The flow control values in the PHY_AN_ADV_2 register (see
within the PHY are not affected by the values of this register.
Offset:
1A4h
DESCRIPTION
Section 6.2.3, "Flow Control Enable Logic," on page 58
DATASHEET
232
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Size:
32 bits
Section 14.4.2.5, on page
TYPE
R/W
R/W
R/W
R/W
SMSC LAN9311/LAN9311i
RO
RO
RO
RO
Note 14.10
Note 14.10
for additional
Note 14.11
DEFAULT
Note 14.8
Note 14.9
Note 14.9
Note 14.9
Datasheet
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295)
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