Datasheet > DM9081_01

DM9081_01

更新时间： 2022-12-28 03:02:49

品牌	Logo	应用领域
联杰 - DAVICOM		控制器
页数	文件大小	规格书
22页	211K
描述
10BASE-T Hub Controller

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中文翻译

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数据手册

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DM9081_01 数据手册

DM9081

10BASE-T Hub Controller

Pin Description

Pin No.

Transceiver

100, 1

99, 2

Pin Name

I/O

Description

DTPO3+/-

TPO3+/-

TPO4+/-

DTPO4+/-

TPO5+/-

DTPO5+/-

TPO6+/-

DTPO6+/-

TPO7+/-

DTPO7+/-

TPO0+/-

DTPO0+/-

TPO1+/-

DTPO1+/-

TPO2+/-

DTPO2+/-

RXD7+/-

RXD6+/-

RXD5+/-

RXD4+/-

RXD3+/-

RXD2+/-

RXD1+/-

RXD0+/-

TXP1, TXN1

TXP2, TXN2

TP Driver Outputs. The TPO+/- output generate 10Mbits/s

Manchester-encoded data. The DTPO+/- outputs are one-half bit

time delayed and inverted with respect to TPO+/-. These four

outputs provide the TP drivers with pre-distortion capability

34, 31

33, 32

39, 36

38, 37

44, 41

43, 42

49, 46

48, 47

84, 87

85, 86

89, 92

90, 91

94, 97

95, 96

52, 51

54, 53

56, 55

58, 57

60, 59

62, 61

64, 63

66, 65

70, 69

76, 75

10BASE-T Port Different Data Receivers

AUI Port Different Data Drivers. The outputs are source followers

that require a 270Ω pull-down resistor

AUI Port Differential Receive Input Pair

72, 71

78, 77

74, 73

RXP1, RXN1

RXP2, RXN2

CDP1, CDN1

CDP2, CDN2

AUI Port Different Collision Input Pair

80, 79

Expansion Port

EXPOUT#

EXPIN#

The assertion of this signal indicates that DM9081 is transmitting

data on DAT pins. It is active low

The assertion of this signal indicates that DM9081 is receiving data

on DAT pins. The receiving data will be broadcast to the other

ports. It is active low and is internally pulled high with a 100KΩ

resistor

DAT

I/O,Z The DAT pins of all DM9081 chips are inter-connected. The active

DM9081 drives DAT with repeated data or jam signals in NRZ

format. The inactive DM9081 receives the repeated data or jam

signals from the DAT pin

Final

Version: DM9081-DS-F02

February 02, 2001

1 2 345 6 7...22

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