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VSC8540RT 数据表(PDF) 61 Page - Microchip Technology

部件名 VSC8540RT
功能描述  Radiation-Tolerant Single Port Fast Ethernet Copper PHY with RGMII/MII/RMII Interfaces
PDF  87 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

VSC8540RT 数据表(HTML) 61 Page - Microchip Technology

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2022 Microchip Technology Inc. and its subsidiaries
DS60001603E-page 61
VSC8540RT
6.6.1
PMA/PMD STATUS 1
The following table shows the bit descriptions for the PMA/PMD Status 1 register.
6.6.2
PCS STATUS 1
The bits in the PCS Status 1 register provide a status of the EEE operation from the PCS for the link that is currently
active.
6.6.3
EEE CAPABILITY
This register is used to indicate the capability of the PCS to support EEE functions for each PHY type. The following
table shows the bit assignments for the EEE capability register.
7.60
EEE advertisement
7.61
EEE link partner advertisement
TABLE 6-55:
PMA/PMD STATUS 1
Bit
Name
Access
Description
15:3
Reserved
RO
Reserved.
2
PMD/PMA receive link status
RO/LL
1: PMA/PMD receive link up.
0: PMA/PMD receive link down.
1:0
Reserved
RO
Reserved.
TABLE 6-56:
PCS STATUS 1, ADDRESS 3.1
Bit
Name
Access
Description
15:12 Reserved
RO
Reserved.
11
Tx LPI received
RO/LH
1: Tx PCS has received LPI.
0: LPI not received.
10
Rx LPI received
RO/LH
1: Rx PCS has received LPI.
0: LPI not received.
9
Tx LPI indication
RO
1: Tx PCS is currently receiving LPI.
0: PCS is not currently receiving LPI.
8
Rx LPI indication
RO
1: Rx PCS is currently receiving LPI.
0: PCS is not currently receiving LPI.
7:3
Reserved
RO
Reserved.
2
PCS receive link status RO/LL
1: PCS receive link up.
0: PCS receive link down.
1:0
Reserved
RO
Reserved.
TABLE 6-57:
EEE CAPABILITY, ADDRESS 3.20
Bit
Name
Access
Description
15:2 Reserved
RO
Reserved.
1
100BASE-TX EEE
RO
1: EEE is supported for 100BASE-TX.
0: EEE is not supported for
100BASE-TX.
0
Reserved
RO
Reserved.
TABLE 6-54:
CLAUSE 45 REGISTERS PAGE SPACE (CONTINUED)
Address
Name



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