RTL8201(L)
2002-01-18
Rev.1.04
19
7.4 Hardware Configuration and Auto-negotiation
This section describes methods to configure the RTL8201(L) and set the auto-negotiation mode. This list will show the various
pins and their setting to provide the desired result.
1)
Isolate pin
: Set high to isolate the RTL8201(L) to MAC. This will also isolate the MDC/MDIO management interface. In
this mode, power consumption is minimum. Please refer to the section covering Isolation mode and Power Down mode.
2)
RPTR pin
: Pull high to set the RTL8201(L) into repeater mode. This pin is pulled low by default. Please refer to the
section covering Repeater mode operation.
3)
LDPS pin
: Pull high to set the RTL8201(L) into LDPS mode. This pin is pulled low by default. Please refer to the section
covering Power Down mode and Link Down Power Saving.
4)
MII/SNIB
: Pull high to set RTL8201(L) into MII mode operation, which is the default mode for the RTL8201. This pin
pulled low will set the RTL8201(L) into SNI mode operation. When set to SNI mode, the RTL8201(L) will work at
10Mbps. Please refer to the section covering Serial Network Interface for more detail information.
5)
ANE pin
: Pull high to enable Auto-negotiation (default). Pull low to disable auto-negotiation and activate the parallel
detection mechanism. Please refer to the section covering Auto-negotiation and Parallel Detection
6)
Speed pin
: When ANE is pulled high, the ability to adjust speed is setup. When ANE is pulled low, pull this pin low to
force 10Mbps operation and high to force 100Mbps operation. Please refer to the section on Auto-negotiation and Parallel
Detection.
7)
DUX pin
: When ANE is pulled high, the ability to adjust the DUX pin will be setup. When ANE is pulled low, pull this
pin low to force half duplex and high to force full duplex operation. Please refer to the section covering Auto-negotiation
and Parallel Detection.
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