KSZ8864RMNI MICREL [Micrel Semiconductor], KSZ8864RMNI Datasheet - Page 95

• Manufacturer Part Number: KSZ8864RMNI
• Description: Integrated 4-Port 10/100 Managed Switch with Two MACs MII or RMII Interfaces
• Manufacturer: MICREL [Micrel Semiconductor]

September 2011
MIIM Registers
All the registers defined in this section can be also accessed via the SPI interface. Note: different mapping
mechanisms used for MIIM and SPI. The “PHYAD” defined in KSZ8864RMN is assigned as “0x2” for port 1, “0x3” for
port 2. The “PHYAD” of 0x1, 0x4 and 0x5 are reserved for this device, an external PHY can use other PHY address
(PHYAD) from 0x6. The “REGAD” supported are 0x0-0x5 (0h-5h), 0x1D (1dh) and 0x1F (1fh).
Address
Register 0h: MII Control
15
14
13
12
11
10
9
8
7
6
5
4
3
Name
Soft Reset
Loop Back
Force 100
AN Enable
Power Down
PHY Isolate
Restart AN
Force Full Duplex
Collision Test
Reserved
Hp_mdix
Force MDI
Disable Auto MDI/MDI-X
Description
1, PHY soft reset.
0, Normal operation.
1 = Perform MAC loopback, loop back path as follows:
Assume the loop-back is at port 1 MAC, port 2 is the
monitor port.
port 3, 4, 5
3, 4, 5 respectively
perform MAC loopback on port 3, 4, 5 respectively.
0 = Normal Operation.
1, 100Mbps.
0, 10Mbps.
1, Auto-negotiation enabled.
0, Auto-negotiation disabled.
1, Power down.
0, Normal operation.
1, Electrical PHY isolation of PHY from Tx+/Tx-.
0, Normal operation.
1, Restart Auto-negotiation.
0, Normal operation.
1, Full duplex.
0, Half duplex.
Not supported.
1 = HP Auto MDI/MDI-X mode
0 = Micrel Auto MDI/MDI-X mode
1, Force MDI.
0, Normal operation.
1, Disable auto MDI/MDI-X.
0, Normal operation.
Setting address ox3,4,5 reg. 0, bit 14 = ‘1’ will
Port 1 MAC Loopback (port 1 reg. 0, bit 14 = ‘1’)
Start: RXP2/RXM2 (port 2). Can also start from
Loopback: MAC/PHY interface of port 1’s MAC
End: TXP2/TXM2 (port 2). Can also end at port
95
Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
(SC)
RO
RO
M9999-092011-1.4
Default
0
0
1
1
0
0
0
0
0
0
1
0
0