KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 22

• Manufacturer Part Number: KS8993F A5
• Manufacturer: Micrel Inc

Specifications of KS8993F A5

• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

KS8993F
2.2.2 MC (Media Converter) Mode
MC (Media Converter) mode is selected and configured using hardware pins: MCCS and MCHS.
Terminal MC mode without port 3 support is enabled when MCCS=0 and MCHS=1. In this mode, port 1 is 100BASE-
FX, port 2 is 10BASE-TX or 100BASE-TX and port 3 is disabled. Terminal MC function is enabled, and the OAM sub-
layer responds to the center MC with OAM frames, such as condition inform reply, loop mode start reply, and loop
mode stop reply.
Terminal MC mode with port 3 support is enabled when MCCS=1 and MCHS=1. In this mode, port 1 is 100BASE-FX,
port 2 is 10BASE-T or 100BASE-TX and port 3 supports MII or SNI interface. Terminal MC function is enabled, and
the OAM sub-layer responds to the center MC with OAM frames, such as condition inform reply, loop mode start reply,
and loop mode stop reply.
Center MC mode with port 3 support is enabled when MCCS=1 and MCHS=0. In this mode, port 1 is 100BASE-FX,
port 2 is 10BASE-T or 100BASE-TX and port 3 supports MII or SNI interface. Center MC function is enabled, and the
OAM sub-layer generates and sends OAM frames, such as condition inform request, loop mode start request and loop
mode stop request to the terminal MC.
2.2.3
August 26, 2004
Center
Terminal
OAM frame
Reply command
MC Loop Back Function
Media
Converte
r
Converter
Media
OAM frame
Request command
management
Gateway/
Router
CPU
Center
office
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Revision 1.0
Micrel