LAN9313 datasheet(219/398 Pages) SMSC

219 / 398 page

Three Port 10/100 Managed Ethernet Switch with MII

Datasheet

SMSC LAN9313/LAN9313i

219

Revision 1.2 (04-08-08)

DATASHEET

Note 13.35

The reserved bits 31-16 are used to pad the register to 32-bits so that each register is on

a DWORD boundary. When accessed serially (through the MII management protocol), the

Note 13.36

The emulated link partner does not support next page, always instantly sends its link code

word, never sends a fault, and does not support 100BASE-T4.

Note 13.37

The emulated link partner’s asymmetric/symmetric pause ability is based upon the values

of the Asymmetric Pause and Pause bits of the Virtual PHY Auto-Negotiation

Advertisement Register (VPHY_AN_ADV). Thus the emulated link partner always

accommodates the request of the Virtual PHY, as shown in Table 13.5. See Section 7.3.1,

"Virtual PHY Auto-Negotiation," on page 98 for additional information.

Note 13.38

The emulated link partner’s ability is based on the MII_DUPLEX pin, duplex_pol_strap_mii,

and speed_strap_mii, as well as on the Auto-Negotiation success. Table 13.6 defines the

default capabilities of the emulated link partner as a function of these signals. Configuration

strap values are latched upon the de-assertion of a chip-level reset as described in Section

4.2.4, "Configuration Straps," on page 45. For more information on the Virtual PHY auto-

negotiation, see Section 7.3.1, "Virtual PHY Auto-Negotiation," on page 98.

100BASE-X Half Duplex

This bit indicates the emulated link partner PHY 100BASE-X half duplex

capability.

0: 100BASE-X half duplex ability not supported

1: 100BASE-X half duplex ability supported

Note 13.38

10BASE-T Full Duplex

This bit indicates the emulated link partner PHY 10BASE-T full duplex

capability.

0: 10BASE-T full duplex ability not supported

1: 10BASE-T full duplex ability supported

Note 13.38

10BASE-T Half Duplex

This bit indicates the emulated link partner PHY 10BASE-T half duplex

capability.

0: 10BASE-T half duplex ability not supported

1: 10BASE-T half duplex ability supported

Note 13.38

4:0

Selector Field

This field identifies the type of message being sent by Auto-Negotiation.

00001: IEEE 802.3

00001b

Table 13.5 Emulated Link Partner Pause Flow Control Ability Default Values

VPHY Symmetric

Pause

(register 4.10)

VPHY Asymmetric

Pause

(register 4.11)

Link Partner

Symmetric Pause

(register 5.10)

Link Partner

Asymmetric Pause

(register 5.11)

No Flow Control Enabled

Symmetric Pause

Asymmetric Pause Towards

Switch

Asymmetric Pause Towards MAC

BITS

DESCRIPTION

TYPE

DEFAULT

LAN9313 Datasheet(PDF) 219 Page - SMSC Corporation

LAN9313 Datasheet(HTML) 219 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