KSZ8995M Micrel Inc, KSZ8995M Datasheet - Page 48

• 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

KS8995M
M9999-120403
Note:
Port Control 12 and 13, and Port Status 0 contents can be accessed by MIIM (MDC/MDIO) interface via the standard MIIM register definition.
Address
3
2
1
0
Register 28 (0x1C): Port 1 Control 12
Register 44 (0x2C): Port 2 Control 12
Register 60 (0x3C): Port 3 Control 12
Register 76 (0x4C): Port 4 Control 12
Register 92 (0x5C): Port 5 Control 12
Address
7
6
5
4
3
2
1
Name
High priority receive
rate flow control enable
Transmit differential
priority rate control
Low priority transmit
rate control enable
High priority transmit
rate control enable
Name
Disable auto-negotiation
Forced speed
Forced duplex
Advertised flow
control capability
Advertised 100BT
full-duplex capability
Advertised 100BT
half-duplex capability
Advertised 10BT
full-duplex capability
Description
1, flow control may be asserted if the port’s high
priority receive rate is exceeded. (To use this, differential
receive rate control must be on.)
0, flow control is not asserted if the port’s high
priority receive rate is exceeded.
1, will do transmit rate control on both high and low
priority packets based on the rate counters defined by
the high and low priority packets respectively.
0, will do transmit rate control on any packets.
The rate counters defined in low priority will be used.
1, enable the port’s low priority transmit rate control
feature.
0, disable the port’s low priority transmit rate control
feature.
1, enable the port’s high priority transmit rate control
feature.
0, disable the port’s high priority transmit rate control
feature.
Description
1, disable auto-negotiation, speed and duplex are
decided by bit 6 and 5 of the same register.
0, auto-negotiation is on.
1, forced 100BT if AN is disabled (bit 7).
0, forced 10BT if AN is disabled (bit 7).
1, forced full-duplex if (1) AN is disabled or (2) AN is
enabled but failed.
0, forced half-duplex if (1) AN is disabled or (2) AN is
enabled but failed.
1, advertise flow control capability.
0, suppress flow control capability from transmission
to link partner.
1, advertise 100BT full-duplex capability.
0, suppress 100BT full-duplex capability from
transmission to link partner.
1, advertise 100BT half-duplex capability.
0, suppress 100BT half-duplex capability from
transmission to link partner.
1, advertise 10BT full-duplex capability.
0, suppress 10BT full-duplex capability from
transmission to link partner.
48
Mode
R/W
R/W
R/W
R/W
Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
Default
0
1
0
For port 4 only,
there is a special
configure pin to set
the default,
Pin PCRS strap
option.
Pull-down (0):
Force half-duplex.
Pull-up (1):
Force full-duplex.
Note: PCRS has
internal pull down.
1
1
1
0
December 2003
Micrel