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5222-DS02-R 数据表(PDF) 40 Page - Broadcom Corporation.

部件名 5222-DS02-R
功能描述  Dual Port 10/100BASE-TX IEEE 802.3u Fast Ethernet Transceiver
PDF  76 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.

5222-DS02-R 数据表(HTML) 40 Page - Broadcom Corporation.

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BCM5222
Preliminary Data Sheet
7/20/04
Broadcom Corporation
Page 28
100BASE-TX Auxiliary Control Register
Document 5222-DS02-405-R
MESSAGE PAGE
Differentiates a Message Page from an Unformatted Page.
ACKNOWLEDGE 2
Indicates that link partner has the ability to comply with the message.
TOGGLE
Used by the Arbitration function to ensure synchronization with the link partner during next page exchange.
MESSAGE CODE FIELD
An 11-bit-wide field, encoding 2048 possible messages.
UNFORMATTED CODE FIELD
An 11-bit-wide field, which may contain an arbitrary value.
100BASE-TX AUXILIARY CONTROL REGISTER
Table 15: 100BASE-TX Auxiliary Control Register (Address 16d, 10h)
Bit
Name
R/W
Description
Default
15:14
Reserved
Write as 0, Ignore when read
0
13
Transmit Disable
R/W
1 = Transmitter disabled in PHY
0 = Normal operation
0
12:11
Reserved
R/W
Write as 0, Ignore when read
00
10
Bypass 4B5B Encoder/
Decoder
R/W
1 = Transmit and receive 5B codes over MII pins
0 = Normal MII interface
0
9
Bypass Scrambler/
Descrambler
R/W
1 = Scrambler and descrambler disabled
0 = Scrambler and descrambler enabled
0
8
Bypass NRZI Encoder/
Decoder
R/W
1 = NRZI encoder and decoder is disabled
0 = NRZI encoder and decoder is enabled
0
7
Bypass Receive Symbol
Alignment
R/W
1 = 5B receive symbols not aligned
0 = Receive symbols aligned to 5B boundaries
0
6
Baseline Wander Correction
Disable
R/W
1 = Baseline wander correction disabled
0 = Baseline wander correction enabled
0
5:0
Reserved
R/W
Write as 0, Ignore when read
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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