KSZ8995FQI Micrel Inc, KSZ8995FQI Datasheet - Page 61

• Manufacturer Part Number: KSZ8995FQI
• Description: 5 Port 10/100 Switch With PHY And Frame Buffers ( )
• Manufacturer: Micrel Inc

Specifications of KSZ8995FQI

• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3300

Semptember 2008
Dynamic MAC Address
This table is read only. The contents are maintained by the KS8995MA/FQ only.
Examples:
Address
Format of Dynamic MAC Address Table (1K entries)
68
67-58
57-56
55
54-52
51-48
47-0
(1) Dynamic MAC Address Table Read (read the 1st entry), and retrieve the MAC table size
(2) Dynamic MAC Address Table Read (read the 257th entry), without retrieving # of entries information
Write to Register 110 with 0x18 (read dynamic table selected)
Write to Register 111 with 0x0 (trigger the read operation)
Then
Read Register 112 (68-64)
Read Register 113 (63-56); // the above two registers show # of entries
Read Register 114 (55-48) // if bit 55 is 1, restart (reread) from this register
Read Register 115 (47-40)
Read Register 116 (39-32)
Read Register 117 (31-24)
Read Register 118 (23-16)
Read Register 119 (15-8)
Read Register 120 (7-0)
Write to Register 110 with 0x19 (read dynamic table selected)
Write to Register 111 with 0x1 (trigger the read operation)
Then
Read Register 114 (55-48) // if bit 55 is 1, restart (reread) from this register
Read Register 115 (47-40)
Read Register 116 (39-32)
Read Register 117 (31-24)
Read Register 118 (23-16)
Read Register 119 (15-8)
Read Register 120 (7-0)
Name
No of Valid Entries
Time Stamp
Data Ready
Source Port
MAC Empty
FID
MAC Address
Description
1, there is no valid entry in the table.
0, there are valid entries in the table.
Indicates how many valid entries in the table.
0x3ff means 1K entries
0x1 means 2 entries
0x0 and bit 68 = 0: means 1 entry
0x0 and bit 68 = 1: means 0 entry
2-bit counters for internal aging
1, The entry is not ready, retry until this bit is set to 0.
0, The entry is ready.
The source port where FID+MAC is learned.
000 port 1
001 port 2
010 port 3
011 port 4
100 port 5
Filter ID.
48-bit MAC address.
Table 12. Dynamic MAC Address Table
61
Mode
RO
RO
RO
RO
RO
RO
RO
M9999-091508
Default
0x0
0x0
0x0
1
0