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VSC8541-01 데이터시트(PDF) 53 Page - Microsemi Corporation

부품명 VSC8541-01
상세설명  Single Port Gigabit Ethernet Copper PHY with GMII/RGMII/MII/RMII Interfaces
PDF  100 Pages
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제조업체  MICROSEMI [Microsemi Corporation]
홈페이지  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC8541-01 데이터시트(HTML) 53 Page - Microsemi Corporation

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Registers
VMDS-10496 VSC8541-01 Datasheet Revision 4.2
43
4.2.25
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 expected
readouts.
4.2.26
LED Mode Select
The device LED outputs are controlled using the bits in register 29 of the main register space. The
following table shows the information needed to access the functionality of each of the outputs. For more
Table 46 •
Auxiliary Control and Status, Address 28 (0x1C)
Bit Name
Access Description
Default
15
Autonegotiation complete
RO
Duplicate of bit 1.5 when auto-negotiation is
enabled, otherwise this is the current link
status.
0
14
Autonegotiation disabled
RO
Inverted duplicate of bit 0.12.
0
13
HP Auto-MDIX crossover indication
RO
1: HP Auto-MDIX 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
Sticky bit. Bits 7 and 2 are part of the ActiPHY
Link Status time-out control. Bit 7 is the MSB.
00: 2.3 seconds.
01: 3.3 seconds.
10: 4.3 seconds.
11: 5.3 seconds.
0
6
ActiPHY mode enable
R/W
Sticky bit.
1: Enabled.
0
5
FDX status
RO
1: Full-duplex.
0: Half-duplex.
0
4:3 Speed status
RO
00: Speed is 10BASE-T.
01: Speed is 100BASE-TX.
10: Speed is 1000BASE-T.
11: Reserved.
00
2
ActiPHY link status time-out control [0] R/W
Sticky bit. Bits 7 and 2 are part of the ActiPHY
Link Status time-out control. Bit 7 is the MSB.
00: 2.3 seconds.
01: 3.3 seconds.
10: 4.3 seconds.
11: 5.3 seconds.
1
1:0 Media mode status
RO
00: No media selected.
01: Copper media selected.
10: Reserved.
11: Reserved.
00



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