LAN9313 datasheet(36/398 Pages) SMSC

36 / 398 page

Three Port 10/100 Managed Ethernet Switch with MII

Datasheet

Revision 1.2 (04-08-08)

SMSC LAN9313/LAN9313i

DATASHEET

Note: For more information on configuration straps, refer to Section 4.2.4, "Configuration Straps," on

page 45. Additional strap pins, which share functionality with the EEPROM pins, are described

in Table 3.6.

Note 3.8

This signal is pulled high through an internal pull-up resistor at all times.

Port 0

(External MII)

Full-Duplex

Flow Control

Enable Strap

FD_FC_MII

(PU)

Note 3.8

Port 0(External MII) Full-Duplex Flow Control

Enable Strap: Configures the default of the

TX_FC_MII and RX_FC_MII bits in the Port

0(External MII) Manual Flow Control Register

(MANUAL_FC_MII). When latched low, flow control

is disabled on RX/TX. When latched high, flow

control is enabled on RX/TX. See Note 3.9.

Port 0

(External MII)

Manual Flow

Control

Enable Strap

MANUAL_FC_MII

(PU)

Note 3.8

Port 0(External MII) Manual Flow Control Enable

Strap: Configures the default value of the

MANUAL_FC_MII bit in the Port 0(External MII)

Manual Flow Control Register (MANUAL_FC_MII).

When latched low, flow control is determined by

Virtual Auto-Negotiation. When latched high, flow

control is determined by TX_FC_MII and

RX_FC_MII bits in the Port 0(External MII) Manual

Flow Control Register (MANUAL_FC_MII). See

Note 3.9, and Note 3.10.

26,28

Serial

Management

Mode Strap

MNGT_MODE[1:0]

(PU)

Note 3.8

Serial Management Mode Strap: Configures the

serial management mode.

00 = Unmanaged mode

01 = SMI Managed Mode

10 = I2C Managed Mode

11 = SPI Managed Mode

See Note 3.9.

MII Mode

Strap

MII_MODE

(PU)

Note 3.8

MII Mode Strap: Configures the mode of the

external MII port.

0 = MAC Mode

1 = PHY Mode

See Note 3.9.

PHY Address

Strap

PHY_ADDR_SEL

(PU)

Note 3.8

PHY Address Strap: Configures the default MII

management address values for the PHYs (Virtual,

Port 1, and Port 2) as detailed in Section 7.1.1,

"PHY Addressing," on page 84.

See Note 3.9.

Table 3.5 Dedicated Configuration Strap Pins (continued)

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

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