Section 14.5.4.4, Datasheet – SMSC LAN9312 User Manual

Page 414

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

Datasheet

Revision 1.4 (08-19-08)

414

SMSC LAN9312

DATASHEET

14.5.4.4

Buffer Manager Flow Control Resume Level Register (BM_FC_RESUME_LVL)

This register configures the buffer usage level when a Pause frame with a pause value of 1 is sent.

Register #:

1C03h

Size:

32 bits

BITS

DESCRIPTION

TYPE

DEFAULT

31:16

RESERVED

RO

-

15:8

Resume Level Low
These bits specify the buffer usage level during times when 2 or 3 ports are
active.

Each buffer is 128 bytes.

Note:

A port is “active” when 36 buffers are in use for that port.

R/W

03h

7:0

Resume Level High
These bits specify the buffer usage level during times when 0 or 1 ports are
active.

Each buffer is 128 bytes.

Note:

A port is “active” when 36 buffers are in use for that port.

R/W

07h

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