DM9081 Ver la hoja de datos (PDF) - Davicom Semiconductor, Inc.
Número de pieza
componentes Descripción
Lista de partido
DM9081 Datasheet PDF : 22 Pages
| |||
DM9081
10BASE-T Hub Controller
Pin Description
Pin No.
Pin Name
Transceiver
100, 1
DTPO3+/-
99, 2
TPO3+/-
34, 31
TPO4+/-
33, 32
DTPO4+/-
39, 36
TPO5+/-
38, 37
DTPO5+/-
44, 41
TPO6+/-
43, 42
DTPO6+/-
49, 46
TPO7+/-
48, 47
DTPO7+/-
84, 87
TPO0+/-
85, 86
DTPO0+/-
89, 92
TPO1+/-
90, 91
DTPO1+/-
94, 97
TPO2+/-
95, 96
DTPO2+/-
52, 51
RXD7+/-
54, 53
RXD6+/-
56, 55
RXD5+/-
58, 57
RXD4+/-
60, 59
RXD3+/-
62, 61
RXD2+/-
64, 63
RXD1+/-
66, 65
RXD0+/-
70, 69
TXP1, TXN1
76, 75
TXP2, TXN2
72, 71
RXP1, RXN1
78, 77
RXP2, RXN2
74, 73
CDP1, CDN1
80, 79
CDP2, CDN2
Expansion Port
24
EXPOUT#
22
EXPIN#
23
DAT
I/O
O
I
O
I
I
O
I
I/O,Z
Description
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
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
AUI Port Different Collision Input Pair
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
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
4
Final
Version: DM9081-DS-F02
February 02, 2001
Share Link: 