KSZ8895MQ Datasheet, PDF (70/116 Pages) Micrel Semiconductor – Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII interface

Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Port Registers (Continued)
Address
4
Name
Advertised Flow Control
Capability
3
Advertised 100BT Full-
Duplex Capability
2
Advertised 100BT Half-
Duplex Capability
1
Advertised 10BT Full-
Duplex Capability
0
Advertised 10BT Half-
Duplex Capability
Description
1, advertise flow control capability.
0, suppress flow control capability from transmission to
link partner.
1, advertise 100BT full-duplex capability.
0, suppress 100BT full-duplex capability from
transmission to link partner.
1, advertise 100BT half-duplex capability.
0, suppress 100BT half-duplex capability from
transmission to link partner.
1, advertise 10BT full-duplex capability.
0, suppress 10BT full-duplex capability from
transmission to link partner.
1, advertise 10BT half-duplex capability.
0, suppress 10BT half-duplex capability from
transmission to link partner.
Register 29 (0x1D): Port 1 Control 6
Register 45 (0x2D): Port 2 Control 6
Register 61 (0x3D): Port 3 Control 6
Register 77 (0x4D): Port 4 Control 6
Register 93 (0x5D): Port 5 Control 6
Mode
R/W
R/W
R/W
R/W
R/W
Default
1
1
1
1
1
Address
7
6
5
4
3
2
1
0
Name
LED Off
Txids
Restart AN
FX reserved
Power Down
Disable Auto MDI/MDI-X
Forced MDI
MAC Loopback
Description
1, turn off all port’s LEDs (LEDx_2, LEDx_1, LEDx_0,
where “x” is the port number). These pins will be driven
high if this bit is set to one.
0, normal operation.
1, disable port’s transmitter.
0, normal operation.
1, restart auto-negotiation.
0, normal operation.
N/A
1, power down.
0, normal operation.
1, disable auto MDI/MDI-X function.
0, enable auto MDI/MDI-X function.
1, if auto MDI/MDI-X is disabled, force PHY into MDI
mode.
0, MDI mode.
1 = Perform MAC loopback, loop back path as follows:
E.g. set port 1 MAC Loopback (reg. 29, bit 0 = ‘1’), use
port 2 as monitor port. The packets will transfer
Start: Port 2 receiving (also can start to receive
packets from port 3, 4, 5).
Loop-back: Port 1’s MAC.
End: Port 2 transmitting (also can end at Port 3, 4,
5 respectively).
Setting reg. 45, 61, 77, 93, bit 0 = ‘1’ will perform MAC
loopback on port 2, 3, 4, 5 respectively.
0 = Normal Operation.
Mode
R/W
R/W
R/W
(SC)
RO
R/W
R/W
R/W
R/W
September 2011
70
Default
0
0
0
0
0
0
0
0
M9999-091911-1.4