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VSC7440 데이터시트(PDF) 191 Page - Microsemi Corporation

부품명 VSC7440
상세설명  L2/L3 Enterprise Gigabit Ethernet Switch with 10 Gbps Links
PDF  444 Pages
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제조업체  MICROSEMI [Microsemi Corporation]
홈페이지  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC7440 데이터시트(HTML) 191 Page - Microsemi Corporation

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Functional Descriptions
VMDS-10492 VSC7440 Datasheet Revision 4.2
174
The following table lists the types of access possible.
Table 110 •
MAC Table Access Commands
Command
Purpose
Use
Learn
Insert/learn new entry in MAC
table.
Position given by HASH(MAC,
FID).
Configure MAC and FID of the new entry in
LRN::MAC_ACCESS_CFG_0 and
LRN::MAC_ACCESS_CFG_1.
Configure entry fields in LRN::MAC_ACCESS_CFG_2.
Status of operation returned in:
LRN::EVENT_STICKY.CPU_LRN_REFRESH_STICKY,
LRN::EVENT_STICKY.CPU_LRN_INSERT_STICKY,
LRN::EVENT_STICKY.CPU_LRN_REPLACE_STICKY,
LRN::EVENT_STICKY.CPU_LRN_REPLACE_FAILED_STICK
Y, LRN::EVENT_STICKY.CPU_LRN_FAILED_STICKY, and
LRN::EVENT_STICKY.LRN_MOVE_STICKY
Unlearn/Forget
Delete/unlearn entry in MAC
table given by (MAC, FID).
Position given by HASH(MAC,
FID).
Configure MAC and FID of the entry to be unlearned in
LRN::MAC_ACCESS_CFG_0 and
LRN::MAC_ACCESS_CFG_1.
Status of operation returned in:
LRN::EVENT_STICKY.CPU_UNLEARN_STICKY and
LRN::EVENT_STICKY.CPU_UNLEARN_FAILED_STICKY.
Lookup
Lookup entry in MAC table
given by (MAC, FID).
Position given by HASH(MAC,
FID)
Configure MAC and FID of the entry to be looked up in
LRN::MAC_ACCESS_CFG_0 and
LRN::MAC_ACCESS_CFG_1.
Status of lookup operation returned in:
LRN::EVENT_STICKY.CPU_LOOKUP_STICKY and
LRN::EVENT_STICKY.CPU_LOOKUP_FAILED_STICKY
Entry fields are returned in LRN::MAC_ACCESS_CFG_2 if
lookup succeeded.
Read direct
Read entry in MAC table
indexed by (row, column)
Configure the index of the entry to read in
LRN::COMMON_ACCESS_CTRL.CPU_ACCESS_DIRECT_R
OW,
LRN::COMMON_ACCESS_CTRL.CPU_ACCESS_DIRECT_C
OL and
LRN::COMMON_ACCESS_CTRL.CPU_ACCESS_DIRECT_T
YPE
Status of read operation returned in
LRN::EVENT_STICKY.CPU_READ_DIRECT_STICKY
Entry fields are returned in LRN::MAC_ACCESS_CFG_0,
LRN::MAC_ACCESS_CFG_1 and
LRN::MAC_ACCESS_CFG_2 if read succeeded.



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