LAN9115_05 SMSC [SMSC Corporation], LAN9115_05 Datasheet - Page 44

• Manufacturer Part Number: LAN9115_05
• Description: Highly Efficient Single- Chip 10/100 Non-PCI Ethernet Controller
• Manufacturer: SMSC [SMSC Corporation]

Revision 1.1 (05-17-05)
■
■
■
■
■
The process is complete. The LAN9115 is now operational using the newly selected MII device.
The above procedure must be repeated each time the MII port is switched. The procedure is identical
when switching from internal PHY to external MII, or vice-versa.
Set EXT_PHY_SEL described in
the desired MII port. This step switches the RXD[3:0], RX_DV, RX_ER, TXD[3:0], TX_EN, CRS
and COL signals to the desired port.
Set PHY_CLK_SEL described in
the desired port. This must be the same port that is selected by EXT_PHY_SEL.
The host must wait a period of time of not less than 5 cycles of the slowest, newly enabled clock
before executing the next step in this procedure.
Enable theLAN9115 transmitter.
Enable the LAN9115 receiver.
DATASHEET
Section 5.3.9, "HW_CFG—Hardware Configuration Register"
Section 5.3.9, "HW_CFG—Hardware Configuration Register"
44
Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
SMSC LAN9115
Datasheet
to
to