SMSC LAN9311 Manual De Usuario

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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
245
Revision 1.4 (08-19-08)
DATASHEET
 
14.2.7.2
PHY Management Interface Access Register (PMI_ACCESS)
This register is used to control the management cycles to the PHYs. A PHY access is initiated when
this register is written. This register is used in conjunction with th
 to perform write operations to the PHYs.
Note:
This register is only accessible by the EEPROM Loader and NOT by the Host bus. Refer to
 for additional information.
Offset:
0A8h
EEPROM Loader 
Access Only
Size:
32 bits
BITS
DESCRIPTION
TYPE
DEFAULT
31:16
RESERVED
RO
-
15:11
PHY Address (PHY_ADDR)
These bits select the PHY device being accessed. Refer to 
 for information on PHY address 
assignments.
WO
00000b
10:6
MII Register Index (MIIRINDA)
These bits select the desired MII register in the PHY. Refer to 
 for detailed 
descriptions on all PHY registers.
WO
00000b
5:2
RESERVED
RO
-
1
RESERVED
Note:
This bit must always be written with a value of 1.
WO
0b
0
RESERVED
RO
0b