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KS8995MI Datasheet

  • KS8995MI

  • Micrel Semiconductor [Integrated 5-Port 10/100 Managed Swit...

  • 268.27KB

  • MICREL

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KS8995M
Address
3
Name
High priority receive
rate flow control enable
Description
1, flow control may be asserted if the port鈥檚 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鈥檚 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鈥檚 low priority transmit rate control
feature.
0, disable the port鈥檚 low priority transmit rate control
feature.
1, enable the port鈥檚 high priority transmit rate control
feature.
0, disable the port鈥檚 high priority transmit rate control
feature.
Mode
R/W
Default
0
Micrel
2
Transmit differential
priority rate control
R/W
0
1
Low priority transmit
rate control enable
R/W
0
0
High priority transmit
rate control enable
R/W
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
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
7
Name
Disable auto-negotiation
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.
Mode
R/W
Default
0
6
5
Forced speed
Forced duplex
R/W
R/W
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
4
Advertised flow
control capability
Advertised 100BT
full-duplex capability
Advertised 100BT
half-duplex capability
Advertised 10BT
full-duplex capability
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.
R/W
3
R/W
1
2
R/W
1
1
R/W
0
M9999-120403
48
December 2003

KS8995MI 产品属性

  • 66

  • 集成电路 (IC)

  • 专用 IC

  • *

  • *

  • *

  • 表面贴装

  • 128-BFQFP

  • 128-PQFP（14x20）

  • 散装

  • 576-1020

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