KSZ8873MLLI Micrel Inc, KSZ8873MLLI Datasheet - Page 48

• Manufacturer Part Number: KSZ8873MLLI
• Description: IC ETHERNET SWITCH 3PORT 64LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873MLLI

• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Fiber Support: No
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Micrel, Inc.
PHY1 Register 29 (PHYAD = 0x1, REGAD = 0x1D): Not supported
PHY2 Register 29 (PHYAD = 0x2, REGAD = 0x1D): LinkMD Control/Status
PHY1 Register 31 (PHYAD = 0x1, REGAD = 0x1F): PHY Special Control/Status
PHY2 Register 31 (PHYAD = 0x2, REGAD = 0x1F): PHY Special Control/Status
September 2009
Bit
15
14-13
12
11-9
8-0
Bit
15-6
5
4
3
2
1
0
Vct_enable
Vct 10M Short
Reserved
Vct_fault_count
Name
Vct_result
Name
Reserved
Polrvs
MDI-X status
Force_lnk
Pwrsave
Remote
Loopback
Reserved
R/W
R/W
(SC)
RO
RO
RO
RO
R/W
RO
RO
RO
R/W
R/W
R/W
R/W
Description
Reserved
=1, Polarity is reversed
=0, Polarity is not reversed
=1, MDI-X
=0, MDI
=1, Force link pass
=0, Normal Operation
=0, Enable power saving
=1, Disable power saving
=1, Perform Remote loopback, as follows:
=0, Normal Operation
Reserved
Do not change the default value.
Description
=1, Enable cable diagnostic. After VCT
test has completed, this bit will be self-
cleared.
=0, Indicate cable diagnostic test (if
enabled) has completed and the status
information is valid for read.
=00, Normal condition
=01, Open condition detected in cable
=10, Short condition detected in cable
=11, Cable diagnostic test has failed
=1, Less than 10 meter short
Reserved
Distance to the fault.
It’s approximately
0.4m*vct_fault_count[8:0]
Port 1 (reg. 26, bit 1 = ‘1’)
Port 2 (reg. 42, bit 1 = ‘1’)
Start: RXP1/RXM1 (port 1)
Loopback: PMD/PMA of port 1’s PHY
End: TXP1/TXM1 (port 1)
Start: RXP2/RXM2 (port 2)
Loopback: PMD/PMA of port 2’s PHY
End: TXP2/TXM2 (port 2)
48
Default
0
00
0
000
{0, (0x00)}
Default
{(0x00),00}
0
0
0
1
0
0
Reference
Reg. 42, bit 4
Reg 42, bit[6:5]
Reg. 42, bit 7
{(Reg. 42, bit 0),
(Reg. 43, bit[7:0])}
Reference
Reg. 31, bit 5
Reg. 47, bit 5
Note: This bit is
only valid for 10BT
Reg. 30, bit 7
Reg. 46, bit 7
Reg. 26, bit 3
Reg. 42, bit 3
Reg. 26, bit 2
Reg. 42, bit 2
Reg. 26, bit 1
Reg. 42, bit 1
KSZ8873MLL/FLL/RLL
M9999-092309-1.2