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VSC8658 Datasheet(PDF) 50 Page - Microsemi Corporation

Part # VSC8658
Description  Octal 10/100/1000BASE-T PHY and 100BASEFX/1000BASE-X SerDes
PDF  95 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC8658 Datasheet(HTML) 50 Page - Microsemi Corporation

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Configuration
VMDS-10242 VSC8658 Datasheet Revision 4.1
42
5.2.23
Device Auxiliary Control and Status
Register 28 provides control and status information for several device functions not controlled or
monitored by other device registers. The following table shows the settings available and the readouts
you can expect.
1
MAC interface
auto-negotiation
complete
RO
1 = The MAC interface auto-negotiation is
complete.
0
0
Reserved
RO
Table 32 •
Auxiliary Control and Status, Address 28 (0x1C)
Bit
Name
Access
Description
Default
15
Auto-negotiation
complete
RO
Duplicate of bit 1.5.
0
14
Auto-negotiation
disabled
RO
Inverted duplicate of bit 0.12.
0
13
MDI/MDI-X crossover
indication
RO
1 = MDI/MDI-X crossover performed
internally.
0
12
CD pair swap
RO
1 = CD pairs are swapped.
0
11
A polarity inversion
RO
1 = Polarity swap on pair A.
0
10
B polarity inversion
RO
1 = Polarity swap on pair B.
0
9
C polarity inversion
RO
1 = Polarity swap on pair C.
0
8
D polarity inversion
RO
1 = Polarity swap on pair D.
0
7
ActiPHY link status
time-out control [1]
R/W
This is a sticky bit.
Bits 7 and 2 are part of the ActiPHY Link
Status time-out control.
Bit 7 is the MSB.
00 = 1 second.
01 = 2 seconds.
10 = 3 seconds.
11 = 4 seconds.
CMODE
6
ActiPHY mode enable R/W
This is a sticky bit.
1 = Enabled.
0
5
FDX status
RO
1 = Full-duplex.
0 = Half-duplex.
00
4:3
Speed status
RO
00 = Speed is 10BASE-T.
01 = Speed is 100BASE-TX or 100BASE-FX.
10 = Speed is 1000BASE-T or 1000BASE-X.
11 = Reserved.
0
2
ActiPHY link status
time-out control [0]
R/W
This is a sticky bit.
Bits 7 and 2 are part of the ActiPHY Link
Status time-out control.
Bit 7 is the MSB.
00 = 1 second.
01 = 2 seconds.
10 = 3 seconds.
11 = 4 seconds.
0
Table 31 •
MAC Auto-Negotiation Control and Status, Address 27 (0x1B) (continued)
Bit
Name
Access
Description
Default



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