Specifications

Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Port Registers (Continued)
Register 30 (0x1E): Port 1 Status 1
Register 46 (0x2E): Port 2 Status 1
Register 62 (0x3E): Port 3 Status 1
Register 78 (0x4E): Port 4 Status 1
Register 94 (0x5E): Port 5 Status 1
Address Name Description Mode Default
7 MDIX Status
1, MDI.
0, MDI-X.
RO 0
6 AN Done
1, AN done.
0, AN not done.
RO 0
5 Link Good
1, link good.
0, link not good.
RO 0
4
Partner Flow Control
Capability
1, link partner flow control capable.
0, link partner not flow control capable.
RO 0
3
Partner 100BT Full-
Duplex Capability
1, link partner 100BT full-duplex capable.
0, link partner not 100BT full-duplex capable.
RO 0
2
Partner 100BT Half-
Duplex Capability
1, link partner 100BT half-duplex capable.
0, link partner not 100BT half-duplex capable.
RO 0
1
Partner 10BT Full-Duplex
Capability
1, link partner 10BT full-duplex capable.
0, link partner not 10BT full-duplex capable.
RO 0
0
Partner 10BT Half-Duplex
Capability
1, link partner 10BT half-duplex capable.
0, link partner not 10BT half-duplex capable.
RO 0
Register 31 (0x1F): Port 1 Control 7 and Status 2
Register 47 (0x2F): Port 2 Control 7 and Status 2
Register 63 (0x3F): Port 3 Control 7 and Status 2
Register 79 (0x4F): Port 4 Control 7 and Status 2
Register 95 (0x5F): Port 5 Control 7 and Status 2
Address Name Description Mode Default
7 PHY Loopback
1, Perform PHY loopback, loop back path as follows:
E.g. set port 1 PHY Loopback (reg. 31, bit 7 = ‘1’)
Use the port 2 as monitor port. The packets will
transfer.
Start: Port 2 receiving (also can start from port
3, 4, 5).
Loopback: PMD/PMA of Port 1’s PHY
End: Port 2 transmitting (also can end at Port 3,
4, 5 respectively).
Setting reg. 47, 63, 79, 95, bit 7 = ‘1’ will perform
PHY loopback on port 2, 3, 4, 5 respectively.
0, Normal Operation.
R/W 0
6 Reserved RO 0
5 PHY Isolate
1, electrical isolation of PHY from MII/RMII and
TX+/TX-.
0, normal operation.
R/W 0
4 Soft Reset
1, PHY soft reset. This bit is self clear.
0, normal operation.
R/W
(SC)
0
3 Force Link
1, force link in the PHY.
0, normal operation
R/W 0
March 12, 2014
72
Revision 1.7