KSZ8995M Micrel Inc, KSZ8995M Datasheet - Page 59
![IC SWITCH 10/100 5PORT 128PQFP](/photos/6/81/68152/576-128-pqfp_sml.jpg)
KSZ8995M
Manufacturer Part Number
KSZ8995M
Description
IC SWITCH 10/100 5PORT 128PQFP
Manufacturer
Micrel Inc
Specifications of KSZ8995M
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
576-1607 - BOARD EVAL EXPERIMENT KSZ8995MA
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-1038
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8995M
Manufacturer:
KENDIN
Quantity:
331
Part Number:
KSZ8995M
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
KSZ8995MA
Manufacturer:
MICREL
Quantity:
7 000
Company:
Part Number:
KSZ8995MA
Manufacturer:
MICREL
Quantity:
18
Part Number:
KSZ8995MA
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
KSZ8995MA-EVAL
Manufacturer:
Micrel Inc
Quantity:
135
Company:
Part Number:
KSZ8995MAI
Manufacturer:
TI
Quantity:
1 700
Part Number:
KSZ8995MAI
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
(2) MIB counter read (read port 2 rx 64 counter)
(3) MIB counter read (read port 1 tx drop packets)
Note:
To read out all the counters, the best performance over the SPI bus is (160+3) 8 200 = 260ms, where there are 160 register, 3 overhead, 8 clocks
per access, at 5MHz. In the heaviest condition, the byte counter will overflow in 2 minutes. It is recommended that the software read all the counters at
least every 30 seconds. The per port MIB counters are designed as “read clear.” A per port MIB counter will be cleared after it is accessed. All port
dropped packet MIB counters are not cleared after they are accessed. The application needs to keep track of overflow and valid conditions on these
counters.
December 2003
KS8995M
Write to reg110 with 0x1c
(read MIB counter selected)
Write to reg111 with 0x2e
(trigger the read operation )
Then
Read reg117 (counter value 31-24)
// If bit 31 = 1, there was a counter overflow.
// If bit 30 = 0, restart (reread) from this register.
Read reg118 (counter value 23-16)
Read reg119 (counter value 15-8)
Read reg120 (counter value 7-0)
Write to reg 110 with 0x1d
Write to reg 111 with 0x00
Then
Read reg119 (counter value 15-8)
Read reg120 (counter value 7-0)
59
M9999-120403
Micrel