KSZ8873FLLI Micrel Inc, KSZ8873FLLI Datasheet - Page 66

• Manufacturer Part Number: KSZ8873FLLI
• Description: IC ETHERNET SWITCH 3PORT 64LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873FLLI

• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 576-3632; KSZ8873FLLI

Micrel, Inc.
Advanced Control Registers (Registers 96-198)
The IPv4/IPv6 TOS Priority Control Registers implement a fully decoded, 128-bit DSCP (Differentiated Services Code
Point) register set that is used to determine priority from the ToS (Type of Service) 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 bits in the DSCP register to determine the priority.
Register 96 (0x60): TOS Priority Control Register 0
Register 97 (0x61): TOS Priority Control Register 1
Register 98 (0x62): TOS Priority Control Register 2
September 2009
Bit
7-6
5-4
3-2
1-0
Bit
7-6
5-4
3-2
1-0
Bit
7-6
5-4
3-2
1-0
Name
DSCP[7:6]
DSCP[5:4]
DSCP[3:2]
DSCP[1:0]
Name
DSCP[15:14]
DSCP[13:12]
DSCP[11:10]
DSCP[9:8]
Name
DSCP[23:22]
DSCP[21:20]
DSCP[19:18]
DSCP[17:16]
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
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x0C.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x08.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x04.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x00.
Description
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x1C.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x18.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x14.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x10.
Description
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x2C.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x28.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x24.
The value in this field is used as the frame’s priority when
bits [7:2] of the frame’s IP TOS/DiffServ/Traffic Class value
is 0x20.
66
Default
00
00
00
00
Default
00
00
00
00
Default
00
00
00
00
KSZ8873MLL/FLL/RLL
M9999-092309-1.2