LAN9312 datasheet(234/458 Pages) SMSC

234 / 458 page

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

Revision 1.2 (04-08-08)

234

SMSC LAN9312

DATASHEET

Note 14.12

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 40 for more information.

Note 14.13

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 58 for additional information.

Note 14.14

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 40 for more information.

Note 14.15

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. See Section 4.2.4, "Configuration Straps," on page 40 for more information.

Port 0 Transmit Flow Control Enable (TX_FC_MII)

When the MANUAL_FC_MII bit is set, or Virtual Auto-Negotiation is

disabled, this bit enables/disables full-duplex Pause packets to be generated

on switch Port 0.

0: Disable flow control transmit

1: Enable flow control transmit

R/W

Note 14.14

Port 0 Full-Duplex Manual Flow Control Select (MANUAL_FC_MII)

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 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

R/W

Note 14.15

BITS

DESCRIPTION

TYPE

DEFAULT

LAN9312 Datasheet(PDF) 234 Page - SMSC Corporation

LAN9312 Datasheet(HTML) 234 Page - SMSC Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL