LAN9218I-MT-E2 View Datasheet(PDF) - SMSC -> Microchip

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LAN9218I-MT-E2

High-Performance Single Chip 10/100 Ethernet Controller with HP Auto-MDIX & Industrial Temperature Support

SMSC -> Microchip 

High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX & Industrial Temperature Support

Datasheet

Table 2.1 Host Bus Interface Signals

PIN NO.

NAME

SYMBOL

BUFFER

#

TYPE PINS

DESCRIPTION

21-26,29-

33,36-40

Host Data High

D[31:16]

I/O8 (PD) 16 Bi-directional data port.

Note that Pull-down’s are disabled in

32 bit mode.

43-46,49-

53,56-59,62-

64

Host DataLow

D[15:0]

I/O8

16 Bi-directional data port. Supports

Big/Little Endian Byte ordering.

12-18

Host Address

A[7:1]

IS

7 7-bit Address Port. Used to select

Internal CSR’s and TX and RX FIFOs.

92

Read Strobe

nRD

IS

1 Active low strobe to indicate a read

cycle.

93

Write Strobe

nWR

IS

1 Active low strobe to indicate a write

cycle. This signal, qualified with nCS, is

also used to wakeup the LAN9218I

when it is in a reduced power state.

94

Chip Select

nCS

IS

1 Active low signal used to qualify read

and write operations. This signal

qualified with nWR is also used to

wakeup the LAN9218I when it is in a

reduced power state.

72

Interrupt

IRQ

O8/OD8

1 Programmable Interrupt request.

Request

Programmable polarity, source and

buffer types.

71,75,84,90,

91

Reserved

Reserved

5 No Connect

73

AutoMDIX

AMDIX_EN

I (PD)

1 Enables Auto-MDIX. Pull high to

Enable

enable Auto-MDIX, pull low or leave

unconnected to disable Auto-MDIX.

74

10/100

SPEED_SEL I (PU)

1 This signal functions as a configuration

Selector

input on power-up and is used to select

the default Ethernet settings. Upon

deassertion of reset, the value of the

input is latched. This signal functions

as shown in Table 2.2, "Default

Ethernet Settings", below.

76

FIFO Select

FIFO_SEL

IS

1 When driven high all accesses to the

LAN9218I are to the RX or TX Data

FIFOs. In this mode, the A[7:3] upper

address inputs are ignored.

SPEED_SEL

0

1

SPEED

10Mbps

100Mbps

Table 2.2 Default Ethernet Settings

DEFAULT ETHERNET SETTINGS

DUPLEX

Half-Duplex

Half-Duplex

AUTO NEG.

Disabled

Enabled

SMSC LAN9218I

15

DATASHEET

Revision 1.5 (07-18-06)

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