
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
83
M9999-100207-1.5
Bit
Default
R/W
Description
Is the same as:
4
1
RW
Advertised flow control capability
1 = advertise flow control (pause) capability
0 = suppress flow control (pause) capability from
transmission to link partner
P1ANAR, bit 4
3
1
RW
Advertised 100BT Full duplex capability
1 = advertise 100Base-T Full duplex capability
0 = suppress 100Base-T Full duplex capability from
transmission to link partner
P1ANAR, bit 3
2
1
RW
Advertised 100BT half duplex capability
1 = advertise 100Base-T Half duplex capability
0 = suppress 100Base-T Half duplex capability from
transmission to link partner
P1ANAR, bit 2
1
RW
Advertised 10BT Full duplex capability
1 = advertise 10Base-T Full duplex capability
0 = suppress 10Base-T Full duplex capability from
transmission to link partner
P1ANAR, bit 1
0
1
RW
Advertised 10BT half duplex capability
1 = advertise 10Base-T Half duplex capability
0 = suppress 10Base-T Half duplex capability from
transmission to link partner
P1ANAR, bit 0
Port 1 Status Register (Offset 0x0514): P1SR
This register contains the global per port status for the switch port 1 function.
Bit
Default
R/W
Description
Is the same as:
15
0
RW
HP_mdix
1 = HP Auto MDIX mode
0 = Micrel Auto MDIX mode
P1MBCR, bit 5
14
0
RO
Reserved
13
0
RO
Polarity reverse
1 = polarity is reversed
0 = polarity is not reversed
P1PHYCTRL,
bit 5
12
0
RO
Receive flow control enable
1 = Receive flow control feature is active
0 = Receive flow control feature is inactive
11
0
RO
Transmit flow control enable
1 = transmit flow control feature is active
0 = transmit flow control feature is inactive
10
0
RO
Operation Speed
1 = link speed is 100Mbps
0 = link speed is 10Mbps
9
0
RO
Operation duplex
1 = link duplex is full
0 = link duplex is half
8
0
RO
Far end fault
1 = Far end fault status detected
0 = no Far end fault status detected
P1MBSR, bit 4