DM9000BI Просмотр технического описания (PDF) - Davicom Semiconductor, Inc.

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DM9000BI

Industrial-grade Ethernet Controller with General Processor Interface

Davicom Semiconductor, Inc. 

3,4

RX+,RX-

5,47

RXGND

6

TXGND

7,8

TX+,TX-

5.6 Miscellaneous

Pin No. Pin Name

41

TEST

40

PWRST#

DM9000BI

Industrial-grade Ethernet Controller with General Processor Interface

TP RX

I/O These two pins are the receive input in MDI mode or the transmit output

in MDIX mode.

P RX Ground

P TX Ground

TP TX

I/O These two pins are the transmit output in MDI mode or the receive input

in MDIX mode.

Type

I

I

Description

Operation Mode

Force to ground in normal application

Power on Reset

Active low signal to initiate the DM9000BI

The DM9000BI is ready after 5us when this pin deasserted

5.7 Power Pins

Pin No. Pin Name

23,30,42

VDD

15,33,45

GND

Type

P

P

Digital VDD

3.3V power input

Digital GND

5.8 strap pins table

1: pull-high 1K~10K, 0: floating (default)

Pin No. Pin Name Description

Polarity of INT

20

EECK

1: INT pin low active;

0: INT pin high active

21

EECS

DATA Bus Width

1: 8-bit

0: 16-bit

Polarity of CS# in 8-bit mode

22

WAKE

1: CS# pin active high

0: CS# pin active low

INT output type in 8-bit mode

25

GP6

1: Open-Drain

0: force mode

Description

Preliminary

12

Version: DM9000BI-13-DS-P02

January 17, 2008

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