DM9106 データシートの表示（PDF） - Davicom Semiconductor, Inc.

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DM9106

10/100 Mbps 3-port Ethernet Switch Controller with PCI Interface

Davicom Semiconductor, Inc. 

95

96

97

98

5.7 Miscellaneous Pins

Pin No.

53

76

77

78

5.8 Power Pins

Pin No.

4,18,32,40,48,62,75,100

24,57,120

11,21,27,35,45,

54,69,103,125

86,94,99

79,87

82,83,90,91

BGRES

BGGND

VCNTL

VREF

DM9106

3-port switch with PCI Interface

These two pins are the Twisted Pair receive in MDI

mode or transmit in MDIX mode.

I/O Bandgap Pin

Connect a 1.4K resistor to BGGND in application.

P Bandgap Ground

I/O 1.8V Voltage control

O Voltage Reference

Connect a 0.1u capacitor to ground in application.

Pin Name

PWRST#

TEST1

TEST2

TEST3

I/O

Description

I Power on Reset

Low active with minimum 1ms

I,PD Tie to high in application

I,PD 0: 3-port mode

All ports are active in this mode.

1: 2-port mode

Only 2 ports are active in this mode. Port 1 or port 2

can be disabled by strap TXEN2. In this mode, the

memory resource is shared by PCI bus port and the

other 2 ports.

I,PD Tie to ground in application

Pin Name

VCC3

VCCI

GND

AVDD3

AVDDI

AGND

I/O

Description

P Digital 3.3V

P Internal 1.8V core power

P Digital GND

P Analog 3.3V power

P Analog 1.8V power

P Analog GND

Preliminary datasheet

15

DM9106-DS-P01

July 9, 2009

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