KSZ8995XA Micrel Inc, KSZ8995XA Datasheet - Page 40

• Manufacturer Part Number: KSZ8995XA
• Description: IC SWITCH 10/100 5PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8995XA

• 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 Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1642 - BOARD EVALUATION FOR KSZ8995XA
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1042

September 2008
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.
Register 29 (0x1D): Port 1 Control 13
Register 45 (0x2D): Port 2 Control 13
Register 61 (0x3D): Port 3 Control 13
Register 77 (0x4D): Port 4 Control 13
Register 93 (0x5D): Port 5 Control 13
Address
0
Address
7
6
5
4
3
2
1
0
Name
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
Advertised 10BT half-
duplex capability
Description
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.
1, advertise 10BT half-duplex capability.
0, suppress 10BT half-duplex capability from
transmission to link partner.
40
Mode
Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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 .
M9999-091508
Default
Default
0
0
1
1
1
1
1
1