LAN9303 Datasheet, PDF (205/366 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
Datasheet
13.3.2.8 Port x PHY Mode Control/Status Register (PHY_MODE_CONTROL_STATUS_x)
Index (decimal): 17
Size:
16 bits
This read/write register is used to control and monitor various Port x PHY configuration options.
BITS
DESCRIPTION
15:14
13
12:2
1
0
RESERVED
Energy Detect Power-Down (EDPWRDOWN)
This bit controls the Energy Detect Power-Down mode.
0: Energy Detect Power-Down is disabled
1: Energy Detect Power-Down is enabled
RESERVED
Energy On (ENERGYON)
This bit indicates whether energy is detected on the line. It is cleared if no
valid energy is detected within 256ms. This bit is unaffected by a software
reset and is reset to 1 by a hardware reset.
0: No valid energy detected on the line
1: Energy detected on the line
RESERVED
TYPE
RO
R/W
RO
RO
R/W
DEFAULT
-
0b
-
1b
0b
SMSC LAN9303/LAN9303i
205
DATASHEET
Revision 1.3 (08-27-09)