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5220-DS02-R 数据表(PDF) 57 Page - Broadcom Corporation.

部件名 5220-DS02-R
功能描述  10/100BASE-TX/FX Mini Transceiver
PDF  90 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  BOARDCOM [Broadcom Corporation.]
网页  http://www.broadcom.com
标志 BOARDCOM - Broadcom Corporation.

5220-DS02-R 数据表(HTML) 57 Page - Broadcom Corporation.

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Preliminary Data Sheet
BCM5220
04/20/04
Broa d c om Co rp o r a t i o n
Document
5220-DS04-405-R
Auxiliary Control/Status Register
Page 45
AUXILIARY STATUS SUMMARY REGISTER
The Auxiliary Status Summary register contains copies of redundant status bits found elsewhere within the MII register
space. Descriptions for each of these individual bits can be found associated with their primary register descriptions.
Table 24 indicates the bits found in this register.
Table 24: Auxiliary Status Summary Register (Address 25d, 19h)
Bit
Name
R/W
Description
Default
15
Auto-Negotiation Complete
RO
1 = Auto-negotiation process completed
0
14
Auto-Negotiation Complete
Acknowledge
RO
LH
1 = Auto-negotiation completed acknowledge state
0
13
Auto-Negotiation
Acknowledge Detected
RO
LH
1 = Auto-negotiation acknowledge detected
0
12
Auto-Negotiation Ability
Detect
RO
LH
1 = Auto-negotiation for link partner ability
0
11
Auto-Negotiation Pause
RO
BCM5220 and link partner pause operation bit
0
10:8
Auto-Negotiation HCD
RO
000 = No highest common denominator
001 = 10BASE-T
010 = 10BASE-T Full-Duplex
011 = 100BASE-TX
100 = 100BASE-T4
101 = 100BASE-TX Full-Duplex
11x = Undefined
000
7
Auto-Negotiation Parallel
Detection Fault
RO
LH
1 = Parallel detection fault
0
6
Link Partner Remote Fault
RO
1 = Link partner remote fault
0
5
Link Partner Page Received
RO
LH
1 = New page has been received
0
4
Link Partner Auto-
Negotiation Able
RO
1 = Link partner is auto-negotiation capable
0
3
Speed Indicator
RO
1 = 100 Mbps
0 = 10 Mbps
2
Link Status
RO
LL
1 = Link is up (link pass state)
0
1
Auto-Negotiation Enabled
RO
1 = Auto-negotiation enabled
ANEN pin
0
Jabber Detect
RO
LH
1 = Jabber condition detected
0
Note: R/W = Read/Write, RO = Read only, SC = Self Clear, LL = latched low, LH = latched high (LL and LH are cleared
after read operation)



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