Switch engine alr command status register, Swe_alr_cmd_sts), Section 14.5.3.6 – SMSC LAN9312 User Manual

Page 373: Regi, Switch, Register, Datasheet

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

SMSC LAN9312

373

Revision 1.4 (08-19-08)

DATASHEET

14.5.3.6

Switch Engine ALR Command Status Register (SWE_ALR_CMD_STS)

This register indicates the current ALR command status.

Note 14.62

The default value of this bit is 0 immediately following any switch fabric reset and then self-
sets to 1 once the ALR table is initialized.

Register #:

1808h

Size:

32 bits

BITS

DESCRIPTION

TYPE

DEFAULT

31:2

RESERVED

RO

-

1

ALR Init Done
When set, indicates that the ALR table has finished being initialized by the
reset process. The initialization is performed upon any reset that resets the
switch fabric. The initialization takes approximately 20uS. During this time,
any received packet will be dropped. Software should monitor this bit before
writing any of the ALR tables or registers.

RO

SS

Note 14.62

0

Make Pending
When set, indicates that the Make Entry command is taking place. This bit
is cleared once the Make Entry command has finished.

RO

SC

0b

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