LAN9312-NZW Standard Microsystems (SMSC), LAN9312-NZW Datasheet - Page 65
LAN9312-NZW
Manufacturer Part Number
LAN9312-NZW
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9312-NZW.pdf
(458 pages)
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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
The following procedure should be followed in order to add, delete, and modify the ALR entries:
1. Write the
2. Write the
3. Poll the Make Pending bit in the
4. Write the
The ALR contains a search engine that is used by the host to read the MAC Address Table. This
engine is accessed by using the
Engine ALR Read Data 0 Register
Register
Note: The entries read are not necessarily in the same order as they were learned or manually
The following procedure should be followed in order to read the ALR entries:
1. Write the
2. Write the
3. Poll the Valid and End of Table bits in the
4. If the Valid bit is set, then the entry is valid and the data from the
5. If the End of Table bit is set, then exit.
6. Write the
7. Write the
8. Go to step 3.
Note: Refer to
ALR Write Data 1 Register (SWE_ALR_WR_DAT_1)
bits.
Note:An entry can be deleted by setting the Valid and Static bits to 0.
Entry)
(SWE_ALR_CMD_STS)
First Entry Bit)
(SWE_ALR_RD_DAT_1)
0 Register (SWE_ALR_RD_DAT_0)
(SWE_ALR_RD_DAT_1)
Next Entry bit)
added.
definitions of these registers.
(SWE_ALR_RD_DAT_1).
Switch Engine ALR Command Register (SWE_ALR_CMD)
Switch Engine ALR Write Data 0 Register (SWE_ALR_WR_DAT_0)
Switch Engine ALR Command Register (SWE_ALR_CMD)
Switch Engine ALR Command Register (SWE_ALR_CMD)
Switch Engine ALR Command Register (SWE_ALR_CMD)
Switch Engine ALR Command Register (SWE_ALR_CMD)
Switch Engine ALR Command Register (SWE_ALR_CMD)
Section 14.5.3.1, on page 366
until it is cleared.
until either are set.
can be stored.
Switch Engine ALR Command Register
DATASHEET
(SWE_ALR_RD_DAT_0), and
65
and
Switch Engine ALR Command Status Register
through
Switch Engine ALR Read Data 1 Register
Switch Engine ALR Read Data 1 Register
Section 14.5.3.6, on page 373
with the desired MAC address and control
Switch Engine ALR Read Data 1
Switch Engine ALR Read Data
with 0001h (Get Next Entry).
with 0000h.
with 0002h (Get First Entry).
with 0000h (Clear the Get
with 0000h (Clear the Get
register with 0004h (Make
(SWE_ALR_CMD),
Revision 1.7 (06-29-10)
and
Switch Engine
for detailed
Switch
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