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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08) 248 SMSC LAN9311/LAN9311i
DATASHEET
Note 14.16 The reserved bits 31-16 are used to pad the register to 32-bits so that each register is on
a DWORD boundary. When accessed serially (through the MII management protocol), the
register is 16-bits wide.
7
Collision Test (VPHY_COL_TEST)
This bit enables/disables the collision test mode. When set, the collision
signal to the Host MAC is active during transmission from the Host MAC.
Note: It is recommended that this bit be used only when in loopback
mode.
0: Collision test mode disabled
1: Collision test mode enabled
R/W 0b
6 Speed Select MSB (VPHY_SPEED_SEL_MSB)
This bit is not used by the Virtual PHY and has no effect. The value returned
is always 0.
RO 0b
5:0
RESERVED RO -
BITS DESCRIPTION TYPE DEFAULT