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Platform Notes: The hme FastEthernet Device Driver

Operational Mode Parameters

Table 3-5 describes the operational mode parameters and their default values.

Table 3-5 Operational Mode Parameters
 Parameter Values Description

adv_autoneg_cap

01 

Local transceiver capability advertised by the hardware= Forced mode= Auto-negotiation (default) 
adv_100T4_cap1

01 

Local transceiver capability advertised by the hardware; read/write parameter= Not 100BASE-T4 capable= 100BASE-T4 capable 

adv_100fdx_cap1

01 

Local transceiver capability advertised by the hardware; read/write parameter= Not 100Mbit/sec full-duplex capable (default in the Solaris 2.5 and 2.5.1 software enviroments)= 100Mbit/sec full-duplex capable (default in the Solaris 2.6 software environment) 

adv_100hdx_cap1

01 

Local transceiver capability advertised by the hardware; read/write parameter= Not 100Mbit/sec half-duplex capable= 100Mbit/sec half-duplex capable (default) 

adv_10fdx_cap1

01 

Local transceiver capability advertised by the hardware; read/write parameter= Not 10Mbit/sec full-duplex capable (default)= 10Mbit/sec full-duplex capable 

adv_10hdx_cap1

01 

Local transceiver capability advertised by the hardware; read/write parameter= Not 10Mbit/sec half-duplex capable= 10Mbit/sec half-duplex capable (default) 

use_int_xcvr

01 

Local transceiver capability selected for networking by the user= External transceiver is used if connected (default)= Internal transceiver is used, even if the external transceiver is connected 

1 The priority (in descending order) for these parameters is: adv_100fdx_cap,adv_100T4_cap,adv_100hdx_cap, adv_10fdx_cap, and adv_10hdx_cap.

Selecting the Internal or External Transceiver

Use the use_int_xcvr parameter to change the default. For example, you can select the internal transceiver, even though the driver is capable of selecting the external transceiver. The driver, not the hardware, determines the internal and external transceiver.

If the external transceiver, which is connected to the MII interface, is present, the driver selects the external transceiver using the default use_int_xcvr 0. If the external transceiver is not present, the driver selects the internal transceiver. When this parameter is set to use_int_xcvr 1, the driver selects the internal transceiver, even if the external transceiver is connected.