KSZ8993M Micrel Inc, KSZ8993M Datasheet - Page 64

• Manufacturer Part Number: KSZ8993M
• Description: IC SWITCH 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8993M

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• 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): 1.89/3.465V
• Operating Supply Voltage (min): 1.71/3.135V
• Power Dissipation: 800mW
• Supply Current: 0.1/0.19A
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-1037

Advanced Control Registers
The IPv4 TOS priority control registers implement a fully decoded 64 bit differentiated services code point (DSCP)
register used to determine priority from the 6 bit TOS field in the IP header. The most significant 6 bits of the TOS
field are fully decoded into 64 possibilities, and the singular code that results is compared against the
corresponding bit in the DSCP register. f the register bit is a 1, the priority is high; if it is a 0, the priority is low.
Register 96 (0x60): TOS Priority Control Register 0
Bit
7-0
Register 97 (0x61): TOS Priority Control Register 1
Bit
7-0
Register 98 (0x62): TOS Priority Control Register 2
Bit
7-0
Register 99 (0x63): TOS Priority Control Register 3
Bit
7-0
Register 100 (0x64): TOS Priority Control Register 4
Bit
7-0
Register 101 (0x65): TOS Priority Control Register 5
Bit
7-0
Register 102 (0x66): TOS Priority Control Register 6
Bit
7-0
Register 103 (0x67): TOS Priority Control Register 7
Bit
7-0
Micrel, Inc.
October 2008
Name
DSCP[63:56]
Name
DSCP[55:48]
Name
DSCP[47:40]
Name
DSCP[39:32]
Name
DSCP[31:24]
Name
DSCP[23:16]
Name
DSCP[15:8]
Name
DSCP[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Description
Description
Description
Description
Description
Description
Description
64
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000_0000
M9999-020606
KSZ8993M/ML