KSZ8895MQ Datasheet, PDF (68/116 Pages) Micrel Semiconductor – Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII interface

Micrel, Inc.
Port Registers (Continued)
Register 25 (0x19): Port 1 Status 0
Register 41 (0x29): Port 2 Status 0
Register 57 (0x39): Port 3 Status 0
Register 73 (0x49): Port 4 Status 0
Register 89 (0x59): Port 5 Status 0
Address
7
6
5
4
3
2
1
0
Name
Hp_mdix
Factory Testing
Polrvs
Transmit Flow Control
Enable
Receive Flow Control
Enable
Operation Speed
Operation Duplex
Reserved
Description
1 = HP Auto MDI/MDI-X mode
0 = Micrel Auto MDI/MDI-X mode
N/A Don’t change.
1 = Polarity is reversed
0 = Polarity is not reversed
1 = Transmit flow control feature is active
0 = Transmit flow control feature is inactive
1 = Receive flow control feature is active
0 = Receive flow control feature is inactive
1 = Link speed is 100Mbps
0 = Link speed is 10Mbps
1 = Link duplex is full
0 = Link duplex is half
N/A Don’t change.
KSZ8895MQ/RQ/FMQ
Mode
R/W
RO
RO
RO
RO
RO
RO
RO
Default
1
0
0
0
0
0
0
0
Register 26 (0x1A): Port 1 PHY Special Control/Status
Register 42 (0x2A): Port 2 PHY Special Control/Status
Register 58 (0x3A): Port 3 PHY Special Control/Status
Register 74 (0x4A): Port 4 PHY Special Control/Status
Register 90 (0x5A): Port 5 PHY Special Control/Status
Address Name
Description
7-4
Reserved
3
Force_lnk
2
Pwrsave
1
Remote Loopback
0
Reserved
N/A Don’t change.
1 = Force link pass
0 = Normal Operation
1 = Enable power saving
0 = Disable power saving
1 = Perform Remote loopback, loopback on port 1 as
follows:
Port 1 (reg. 26, bit 1 = ‘1’)
Start : RXP1/RXM1 (port 1)
Loopback: PMD/PMA of port 1’s PHY
End: TXP1/TXM1 (port 1)
Setting reg. 42, 58, 74, 90, bit 1 = ‘1’ will perform
remote loopback on port 2, 3, 4, 5.
0 = Normal Operation.
N/A Don’t change.
Mode
RO
R/W
R/W
R/W
RO
Default
0000
0
0
0
0
September 2011
68
M9999-091911-1.4