KS8995M Micrel Inc, KS8995M Datasheet - Page 56
![IC SWITCH 10/100 5PORT 128PQFP](/photos/6/81/68152/576-128-pqfp_sml.jpg)
KS8995M
Manufacturer Part Number
KS8995M
Description
IC SWITCH 10/100 5PORT 128PQFP
Manufacturer
Micrel Inc
Specifications of KS8995M
Applications
*
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
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
Power Supply Type
Analog/Digital
Package Type
PQFP
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
1.9/2.6/3.6V
Operating Supply Voltage (min)
1.7/2.4/3V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1017 - BOARD EVAL EXPERIMENT KS8995M
Lead Free Status / RoHS Status
Not Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KS8995M
Manufacturer:
MICREL
Quantity:
1 820
Company:
Part Number:
KS8995MAI
Manufacturer:
MAXIM
Quantity:
4 430
KS8995M
M9999-120403
Dynamic MAC Address
This table is ready only. The contents are maintained by KS8995M only.
Examples:
(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 info
Address
Format of Dynamic MAC Address Table (1K entries)
68
67-58
57-56
55
54-52
51-48
47-0
Write to reg110 with 0x18 (read dynamic table selected)
Write to reg111 with 0x0 (trigger the read operation )
Then
Read reg112 (68-64)
Read reg113 (63-56) ; // the above two registers show # of entries
Read reg114 (55-48) // if bit 55 is 1, restart(reread) from this register
Read reg115 (47-40)
Read reg116 (39-32)
Read reg117 (31-24)
Read reg118 (23-16)
Read reg119 (15-8)
Read reg120 (7-0)
Write to reg110 with 0x19 (read dynamic table selected)
Write to reg111 with 0x1 (trigger the read operation)
Then
Read reg114 (55-48) // if bit 55 is 1, restart (reread) from this register
Read reg115 (47-40)
Read reg116 (39-32)
Read reg117 (31-24)
Read reg118 (23-16)
Read reg119 (15-8)
Read reg120 (7-0)
Name
MAC empty
No of valid entries
Time stamp
Data ready
Source port
FID
MAC address
Table 14. Dynamic MAC Address Table
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
56
Mode
RO
RO
RO
RO
RO
RO
RO
Default
1
0
0x0
0x0
0x0
December 2003
Micrel