KSZ8995M A4 Micrel Inc, KSZ8995M A4 Datasheet - Page 43

• Manufacturer Part Number: KSZ8995M A4
• Manufacturer: Micrel Inc

Specifications of KSZ8995M A4

• 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: Compliant

Note:
1. 148,800 frames/sec × 50ms/interval × 1% = 74 frames/interval (approx.) = 0x4A
June 2009
KS8995M
Address
5
4
3
2-0
Register 7 (0x07): Global Control 5
7-0
Register 8 (0x08): Global Control 6
7-0
Register 9 (0x09): Global Control 7
7-0
Register 10 (0x0A): Global Control 8
7-0
Register 11 (0x0B): Global Control 9
7-2
1
0
Name
Switch MII flow
control enable
Switch MII 10BT
Null VID replacement
Broadcast storm
protection rate Bit [10:8]
Broadcast storm
protection rate Bit [7:0]
Factory testing
Factory testing
Factory testing
Reserved
LED mode
Special TPID mode
Description
1, enable full-duplex flow control on switch MII interface.
0, disable full-duplex flow control on switch MII interface.
1, the switch interface is in 10Mbps mode.
0, the switch interface is in 100Mbps mode.
1, will replace null VID with port VID(12 bits).
0, no replacement for null VID.
This along with the next register determines how many
“64 byte blocks” of packet data allowed on an input port
in a preset period. The period is 50ms for 100BT or
500ms for 10BT. The default is 1%.
This along with the previous register determines how
many “64 byte blocks” of packet data are allowed on an
input port in a preset period. The period is 50ms for
100BT or 500ms for 10BT. The default is 1%.
Reserved
Reserved
Reserved
N/A
0 = led mode 0
1 = led mode 1
LEDX_2
LEDX_1
LEDX_0
1 = enable special TPID mode .
0 = disable special TPID mode.
43
Speed
Mode 0
Lnk/Act
Fulld/Col
Mode 1
100Lnk/Act
10Lnk/Act
Fulld
Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
Pin SMRXD3 strap
option. Pull-down
(0): disable flow
control. Pull-up(1):
enable flow control.
Note: SMRXD3
has internal pull-
down.
Pin SMRXD1 strap
option. Pull-down
(0): Enable
100Mbps. Pull-up
(1): Enable 10Mpbs.
Note: SMRXD1
has internal pull-
down.
0
000
0x4A
0x24
0x28
0x24
0
Pin SMRXD0 strap
option. Pull-down
(0): Enabled led
mode 0. Pull-up (1):
Enabled led mode 1.
Note: SMRXD0 has
internal pull-down 0.
0
(1)
M9999-062309
Micrel, Inc.