lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 245
lan9312
Manufacturer Part Number
lan9312
Description
Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9312.pdf
(458 pages)
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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
14.2.8
INDEX #
31
0
1
2
3
4
5
6
Virtual PHY
This section details the Virtual PHY System CSR’s. These registers provide status and control
information similar to that of a real PHY while maintaining IEEE 802.3 compatibility. The Virtual PHY
registers are addressable via the memory map, as described in
MII management protocol (IEEE 802.3 clause 22). When accessed serially, these registers are
accessed indirectly through the
Data Register (HMAC_MII_DATA)
clause 22. When being accessed serially, the Virtual PHY will respond when the PHY address equals
the address assigned by the phy_addr_sel_strap configuration strap, as defined in
Addressing," on page
Table
Virtual PHY functionality and operation information, see
Note: All Virtual PHY registers follow the IEEE 802.3 (clause 22.2.4) specified MII management
Note: When serially accessed, the Virtual PHY registers are only 16-bits wide, as is standard for MII
VPHY_AN_LP_BASE_ABILITY
14.4. For more information on the Virtual PHY access modes, refer to section
VPHY_BASIC_STATUS
VPHY_SPEC_CTRL_STATUS
register set. All functionality and bit definitions comply with these standards. The IEEE 802.3
specified register index (in decimal) is included under the LAN9312 memory mapped offset of
each Virtual PHY register as a reference. For additional information, refer to the IEEE 802.3
Specification.
management of PHY’s.
VPHY_BASIC_CTRL
VPHY_AN_ADV
VPHY_AN_EXP
Table 14.4 Virtual PHY MII Serially Adressable Register Index
VPHY_ID_MSB
VPHY_ID_LSB
SYMBOL
82. A list of all Virtual PHY register indexes for serial access can be seen in
Host MAC MII Access Register (HMAC_MII_ACC)
DATASHEET
via the MII serial management protocol specified in IEEE 802.3
Virtual PHY Basic Control Register,
Virtual PHY Basic Status Register,
Virtual PHY Identification MSB Register,
Virtual PHY Identification LSB Register,
Virtual PHY Auto-Negotiation Advertisement Register,
Section 14.2.8.5
Virtual PHY Auto-Negotiation Link Partner Base Page Ability
Register,
Virtual PHY Auto-Negotiation Expansion Register,
Section 14.2.8.7
Virtual PHY Special Control/Status Register,
245
Section 14.2.8.6
Section 7.3, "Virtual PHY," on page
REGISTER NAME
Table
14.1, as well as serially via the
Section 14.2.8.2
Section 14.2.8.1
Section 14.2.8.4
Section 14.2.8.3
Revision 1.2 (04-08-08)
Section 14.2.8.8
Section 7.1.1, "PHY
and
Section
Host MAC MII
96.
14.4. For
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