LAN91C100FD_06 datasheet(6/67 Pages) SMSC

部件名	LAN91C100FD

功能描述	FEAST Fast Ethernet Controller with Full Duplex Capability

Download	67 Pages

Scroll/Zoom	100%

制造商	SMSC [SMSC Corporation]

网页	http://www.smsc.com

标志

6 / 67 page

SMSC DS – LAN91C100FD REV. B

Page 6

Rev. 01-20-06

DESCRIPTION OF PIN FUNCTIONS

PQFP/TQFP

PIN NO.

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

109

nReady

Return

nRDYRTN

I

Input. This input is used to complete synchronous

read cycles. In EISA burst mode it is sampled on

falling LCLK edges, and synchronous cycles are

delayed until it is sampled high.

176,

187-189

Interrupt

INTR0-

INTR3

O24

Outputs. Only one of these interrupts is selected to

be used; the other three are tri-stated.

The

selection is determined by the value of INT SEL 1-

0 bits in the Configuration Register.

108

nLocal

Device

nLDEV

O16

Output. This active low output is asserted when

AEN

is

low

and

A4-A15

decode

to

the

LAN91C100FD address programmed into the high

byte of the Base Address Register. nLDEV is a

combinatorial decode of unlatched address and

AEN signals.

177

nRead

Strobe

nRD

IS

Input. Used in asynchronous bus interfaces.

178

nWrite

Strobe

nWR

IS

Input. Used in asynchronous bus interfaces.

190

nData Path

Chip

Select

nDATACS

I with

pullup

Input. When nDATACS is low, the Data Path can

be accessed regardless of the values of AEN, A1-

A15 and the content of the BANK SELECT

Register.

nDATACS provides an interface for

bursting to and from the LAN91C100FD 32 bits at

a time.

54

EEPROM

Clock

EESK

O4

Output. 4

μsec clock used to shift data in and out

of the serial EEPROM.

55

EEPROM

Select

EECS

O4

Output.

Serial EEPROM chip select. Used for

selection and command framing of the serial

EEPROM.

52

EEPROM

Data Out

EEDO

O4

Output.

Connected to the DI input of the serial

EEPROM.

53

EEPROM

Data In

EEDI

I with

pulldown

Input. Connected to the DO output of the serial

EEPROM.

13, 15, 16

I/O Base

IOS0-IOS2

I with

pullup

Input. External switches can be connected to these

lines to select between predefined EEPROM

configurations.

51

Enable

EEPROM

ENEEP

I with

pullup

Input.

Enables

(when

high

or

open)

LAN91C100FD accesses to the serial EEPROM.

Must be grounded if no EEPROM is connected to

the LAN91C100FD.

42, 40-38,

36-33

RAM Data

Bus

RD0-RD7

I/O4 with

pullups

Bidirectional. Carries the local buffer memory read

and write data. Reads are always 32 bits wide.

Writes are controlled individually at the byte level.

Floated if FLTST=1 during RECEIVE FRAME

STATUS WORD writes for packet forwarding

information (RA2-RA16=0, RCVDMA=1, nRWE0-

nRWE3=0).

59, 56,

49-47,

45-43,

69-67, 65,

64, 62-60,

81-76, 71, 70

RAM Data

Bus

RD8-RD31

I/O4 with

pullups

Bidirectional. Carries the local buffer memory read

and write data. Reads are always 32 bits wide.

Writes are controlled individually at the byte level.

类似零件编号 - LAN91C100FD_06

制造商	部件名	数据表	功能描述
SMSC Corporation	LAN91C100FD_0601	456Kb / 78P	FEAST Fast Ethernet Controller with Full Duplex Capability

More results

类似说明 - LAN91C100FD_06

制造商	部件名	数据表	功能描述
SMSC Corporation	LAN91C100FDREVD	585Kb / 79P	FEAST FAST ETHERNET CONTROLLER WITH FULL DUPLEX CAPABILITY
	LAN91C100FD_0601	456Kb / 78P	FEAST Fast Ethernet Controller with Full Duplex Capability
	91C100FDREVB	423Kb / 68P	FEAST FAST ETHERNET CONTROLLER WITH FULL DUPLEX CAPABILITY
	LAN91C100FD	501Kb / 77P	FEAST Fast Ethernet Controller with Full Duplex Capability
	LAN91C100	347Kb / 101P	FEAST??Fast Ethernet Controller
List of Unclassifed Man...	SMC91C100	411Kb / 83P	FEAST Fast Ethernet Controller
List of Unclassifed Man...	RTL8029AS	578Kb / 41P	Realtek PCI Full-Duplex Ethernet Controller with built-in SRAM
Realtek Semiconductor C...	RTL8019AS	642Kb / 51P	Realtek Full-Duplex Ethernet Controller with Plug and Play Function
SMSC Corporation	LAN91C110	381Kb / 56P	FEAST Fast Ethernet Controller for PCMCIA and Generic 16-Bit Applications
SMSC Corporation	LAN91C96I	547Kb / 109P	Non-PCI Single-Chip Full Duplex Ethernet Controller