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AL2100-DS00-R Datasheet(PDF) 29 Page - Broadcom Corporation.

Part # AL2100-DS00-R
Description  Ultra Low-Power 100 Mbps Ethernet Media Converter
PDF  52 Pages
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Manufacturer  BOARDCOM [Broadcom Corporation.]
Direct Link  http://www.broadcom.com
Logo BOARDCOM - Broadcom Corporation.

AL2100-DS00-R Datasheet(HTML) 29 Page - Broadcom Corporation.

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Preliminary Data Sheet
AL2100
11/11/02
Broa d c om Co rp o r a ti o n
Document
AL2100-DS01-405-R
100base-Tx PHY Registers
Page 21
DIAGNOSTIC REGISTER
POWER/LOOPBACK REGISTER
CABLE MEASUREMENT CAPABILITY REGISTER
Table 14: Register 18: Diagnostic Register Bit Description
Bit
Name
Description
Mode
Default
15:13
Reserved
RW
0
12
Force link pass
TX
1 = Enable Force Link at 100 Base-T.
0 = Disable.
RW
0
11
DPLX
This bit indicates the result of the auto-negotiation for duplex.
1 = Full duplex.
0 = Half duplex.
RO
set by pin
10
Speed
This bit indicates the result of the auto-negotiation for speed.
1 = 100Base-T.
0 = 10Base-T.
RO
1
9
RX_PASS
In 100BT mode, this bit indicates that the valid signal was
received but not necessarily locked onto.
RO
0
8
RX_LOCK
This bit indicates that the receive PLL has locked onto the
received signal for the selected speed of operation (100Base-
TX). This bit is set whenever a cycle-slip occurs, and remains set
until it is read.
RO/RC
0
7:0
Reserved
RO
0
Table 15: Register 19: Power/Loopback Register Bit Description
Bit
Name
Description
Mode
Default
14:7
Reserved
RW
00000000
6
Reserved
RW
0
5
Disable watch
dog timer for
decipher
1 = Disable watchdog timer.
0 = Enable watchdog timer.
RW
0
4Low Power
Mode disable
1= Disable advance power saving mode.
0= Enable advance power saving mode.
RW
0
3
Enable digital
loopback
1 = Enable digital loopback.
0 = Disable digital loopback.
RW
0
2
Reserved
Reserved
RW
0
1
Reserved
Reserved.
RW
0
0
Reserved
Reserved.
RW
0
Table 16: Register 20: Cable Measurement Capability Register Bit Description
Bit
Name
Description
Mode
Default
15
Reserved
RW
1
14
Reserved
1 = Turn on.
0 = Turn off.
RW
1
13:9
Reserved
RO
0



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