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5222-DS00-R Folha de dados(PDF) 36 Page - Broadcom Corporation.

Nome de Peças 5222-DS00-R
Descrição Electrónicos  Dual Port 10/100BASE-TX IEEE 802.3u Fast Ethernet Transceiver
PDF  76 Pages
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Fabricante Electrônico  BOARDCOM [Broadcom Corporation.]
Página de início  http://www.broadcom.com
Logo BOARDCOM - Broadcom Corporation.

5222-DS00-R Folha de dados(HTML) 36 Page - Broadcom Corporation.

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BCM5222
Preliminary Data Sheet
7/20/04
Broadcom Corporation
Page 24
Auto-Negotiation Link Partner (LP) Ability Register
Document 5222-DS02-405-R
AUTO-NEGOTIATION LINK PARTNER (LP) ABILITY REGISTER
The values contained in the Auto-Negotiation Link Partner Ability register are only guaranteed to be valid after auto-
negotiation has successfully completed, as indicated by bit 5 of the MII Status register.
LP NEXT PAGE
Bit 15 of the Link Partner Ability register returns a value of 1 when the link partner implements the next page function and
has next page information that it wants to transmit.
LP ACKNOWLEDGE
Bit 14 of the Link Partner Ability register is used by auto-negotiation to indicate that a device has successfully received its
link partner’s link code word.
LP REMOTE FAULT
Bit 13 of the Link Partner Ability register returns a value of 1 when the link partner signals that a remote fault has occurred.
The BCM5222 simply copies the value to this register and does not act upon it.
Reserved Bits
Ignore when read.
LP Advertise Pause
Indicates that the Link Partner Pause bit is set.
Table 11: Auto-Negotiation Link Partner Ability Register (Address 05d, 05h)
Bit
Name
R/W
Description
Default
15
LP Next Page
RO
Link partner next page bit
0
14
LP Acknowledge
RO
Link partner acknowledge bit
0
13
LP Remote Fault
RO
Link partner remote fault indicator
0
12:11
Reserved
RO
Ignore when read
00
10
LP Advertise Pause
RO
Link partner has pause capability
0
9
LP Advertise 100BASE-T4
RO
Link partner has 100BASE-T4 capability
0
8
LP Advertise 100BASE-TX FDX
RO
Link partner has 100BASE-TX FDX capability
0
7
LP Advertise 100BASE-TX
RO
Link partner has 100BASE-TX capability
0
6
LP Advertise 10BASE-T FDX
RO
Link partner has 10BASE-T FDX capability
0
5
LP Advertise 10BASE-T
RO
Link partner has 10BASE-T capability
0
4:0
Link Partner Selector Field
RO
Link partner selector field
00000
Note: R/W = Read/Write, RO = Read only, SC = Self Clear, LL = Latched Low, LH = Latched High, LL & LH Clear after
read operation. Use default values of reserved bit(s) when writing to reserved bit(s).



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