KSZ8842MQL Datasheet, PDF (108/141 Pages) Micrel Semiconductor – 2-Port Ethernet Switch with Non-PCI Interface

Micrel, Inc.
Bit
Default
3
1
2
1
1
1
0
1
R/W Description
RW Advertised 100BT full-duplex capability.
1 = advertise 100BT full-duplex capability.
0 = suppress 100BT full-duplex capability from
transmission to link partner.
RW Advertised 100BT half-duplex capability.
1 = advertise 100BT half-duplex capability.
0 = suppress 100BT half-duplex capability from
transmission to link partner.
RW Advertised 10BT full-duplex capability.
1 = advertise 10BT full-duplex capability.
0 = suppress 10BT full-duplex capability from
transmission to link partner.
RW Advertised 10BT half-duplex capability.
1 = advertise 10BT half-duplex capability.
0 = suppress 10BT half-duplex capability from
transmission to link partner.
Bank 49 Port 1 Status Register (0x04): P1SR
This register contains the global per port status for the switch function.
Bit Default
15
1
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
R/W Description
RW HP_mdix
1 = HP Auto MDI-X mode.
0 = Micrel Auto MDI-X mode.
RO
Reserved
RO
Polarity Reverse
1 = polarity is reversed.
0 = polarity is not reversed.
RO
Receive Flow Control Enable
1 = receive flow control feature is active.
0 = receive flow control feature is inactive.
RO
Transmit Flow Control Enable
1 = transmit flow control feature is active.
0 = transmit flow control feature is inactive.
RO
Operation Speed
1 = link speed is 100Mbps.
0 = link speed is 10Mbps.
RO
Operation Duplex
1 = link duplex is full.
0 = link duplex is half.
RO
Reserved
RO
MDI-X status
1 = MDI.
0 = MDI-X.
KSZ8842-16/32 MQL/MVL/MVLI/MBL
Bit is same as:
Bank 45 0x08 bit 8
Bank 45 0x08 bit 7
Bank 45 0x08 bit 6
Bank 45 0x08 bit 5
Bit is same as:
Bank 45 0x00 bit 5
Bank 47 0x02 bit 5
Bank 45 0x02 bit 4
Bank 47 0x02 bit 4
October 2007
108
M9999-102207-1.9