
Micrel, Inc.
KSZ8851-16MLLJ
March 2010
76
M9999-030210-1.0
Port 1 Control Register (0xF6 – 0xF7): P1CR (Continued)
6
1
RW
Force Speed
1 = force 100BT if AN is disabled (bit 7).
0 = force 10BT if AN is disabled (bit 7).
Bit 13 in P1MBCR
5
1
RW
Force Duplex
1 = force full duplex if (1) AN is disabled or (2) AN
is enabled but failed.
0 = force half duplex if (1) AN is disabled or (2) AN
is enabled but failed.
Bit 8 in P1MBCR
4
1
RW
Advertised flow control capability
1 = advertise flow control (pause) capability.
0 = suppress flow control (pause) capability from
transmission to link partner.
Bit 10 in P1ANAR
3
1
RW
Advertised 100BT full-duplex capability
1 = advertise 100BT full-duplex capability.
0 = suppress 100BT full-duplex capability from
transmission to link partner.
Bit 8 in P1ANAR
2
1
RW
Advertised 100BT half-duplex capability
1 = advertise 100BT half-duplex capability.
0 = suppress 100BT half-duplex capability from
transmission to link partner.
Bit 7 in P1ANAR
1
RW
Advertised 10BT full-duplex capability
1 = advertise 10BT full-duplex capability.
0 = suppress 10BT full-duplex capability from
transmission to link partner.
Bit 6 in P1ANAR
0
1
RW
Advertised 10BT half-duplex capability
1 = advertise 10BT half-duplex capability.
0 = suppress 10BT half-duplex capability from
transmission to link partner.
Bit 5 in P1ANAR