Microsemi SmartFusion2 - Table 360 INTERFACE_STATUS

Ethernet MAC
UG0331 User Guide Revision 15.0 409
Table 360 • INTERFACE_STATUS
Bit Number Name Reset Value Description
[31:11] Reserved 0x0 Reserved
10 Reserved 0x0 Reserved
9 EXCESS DEFER 0x0 This bit sets when the MAC excessively defers a
transmission. It clears when read. This bit latches high.
8 CLASH 0x0 When read as a ‘1’, the Serial MII module is in the MAC to
MAC mode with the partner in 10 Mbps and/or half-duplex
mode indicative of a configuration error.
When read as a ‘0’, the Serial MII module is either in PHY
mode or in a properly configured MAC to MAC mode.
7 JABBER 0x0 When read as a ‘1’, the Serial MII PHY detects a jabber
condition on the link. When read as a ‘0’, the Serial MII PHY
does not detect a jabber condition.
6 LINK OK 0x0 When read as a ‘1’, the Serial MII PHY detects a valid link.
When read as a ‘0’, the Serial MII PHY does not detect a valid
link.
5 FULL DUPLEX 0x0 When read as a ‘1’, the Serial MII PHY operates in full-duplex
mode. When read as a ‘0’, the Serial MII PHY operates in
half-duplex mode.
4 SPEED 0x0 When read as a ‘1’, the Serial MII PHY operates at 100 Mbps
mode. When read as a ‘0’, the Serial MII PHY operates at 10
Mbps.
3 LINK FAIL 0x0 When read as a ‘1’, the MII Management module reads the
PHY link fail register to be 1’. When read as a ‘0’, the MII
Management module reads the PHY link fail register to be 0’.
Note: For asynchronous host accesses, this bit must be read
at least once every scan read cycle of the PHY.
2 Reserved 0x0 Reserved
1 Reserved 0x0 Reserved
0 Reserved 0x0 Reserved
Table 361 • STATION_ADDRESS1
Bit Number Name
Reset
Value Description
[31:24] STATION ADDRESS 0x0 This field holds the first octet of the station address.
[23:16] STATION ADDRESS 0x0 This field holds the second octet of the station address.
[15:8] STATION ADDRESS 0x0 This field holds the third octet of the station address.
[7:0] STATION ADDRESS 0x0 This field holds the fourth octet of the station address.