LAN9211_12 Datasheet, PDF (88/147 Pages) SMSC Corporation – High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support

High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
Datasheet
BITS
DESCRIPTION
0 Soft Reset (SRST). Writing 1 generates a software initiated reset. This reset
generates a full reset of the MAC CSR’s. The SCSR’s (system command
and status registers) are reset except for any NASR bits. Soft reset also
clears any TX or RX errors (TXE/RXE). This bit is self-clearing.
Notes:
„ Do not attempt a soft reset unless the PHY is fully awake and operational.
After a PHY reset, or when returning from a reduced power state, the PHY
must given adequate time to return to the operational state before a soft
reset can be issued.
„ The LAN9211 must always be read at least once after power-up, reset, or
upon return from a power-saving state or write operations will not function.
TYPE
SC
DEFAULT
0
Revision 2.9 (03-01-12)
88
DATASHEET
SMSC LAN9211