KSZ8995FQI Micrel Inc, KSZ8995FQI Datasheet - Page 65

• Manufacturer Part Number: KSZ8995FQI
• Description: 5 Port 10/100 Switch With PHY And Frame Buffers ( )
• Manufacturer: Micrel Inc

Specifications of KSZ8995FQI

• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3300

Semptember 2008
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 IEEE is assigned as “0x1” for port 1, “0x2” for port 2,
“0x3” for port 3, “0x4” for port 4, and “0x5” for port 5. The “REGAD” supported are 0,1,2,3,4,5.
Address
Register 0: MII Control
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Register 1: MII Status
15
14
13
12
11
10-7
6
5
4
Name
Soft Reset
Loop Back
Force 100
AN Enable
Power Down
PHY Isolate
Restart AN
Force Full Duplex
Collision Test
Reserved
Reserved
Force MDI
Disable Auto MDI/MDI-X
Disable far End fault
Disable Transmit
Disable LED
T4 Capable
100 Full Capable
100 Half Capable
10 Full Capable
10 Half Capable
Reserved
Preamble Suppressed
AN Complete
far End fault
1, 10BASE-T full-duplex capable.
Description
1, PHY soft reset.
0, Normal operation.
1, Loop back mode (loopback at MAC).
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, Force MDI.
0, Normal operation.
1, Disable auto MDI/MDI-X.
0, Normal operation.
1, Disable far end fault detection.
0, Normal operation.
1, Disable transmit.
0, Normal operation.
1, Disable LED.
0, Normal operation.
0, Not 100 BASET4 capable.
1, 100BASE-TX full-duplex capable.
0, Not capable of 100BASE-TX full-duplex.
1, 100BASE-TX half-duplex capable.
0, Not 100BASE-TX half-duplex capable.
0, Not 10BASE-T full-duplex capable.
1, 10BASE-T half-duplex capable.
0, 10BASE-T half-duplex capable.
Not supported.
1, Auto-negotiation complete.
0, Auto-negotiation not completed.
1, far end fault detected.
0, No far end fault detected.
65
Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
W
M9999-091508
Default
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0