KSZ8842-16MVLI TR Micrel, KSZ8842-16MVLI TR Datasheet - Page 79
KSZ8842-16MVLI TR
Manufacturer Part Number
KSZ8842-16MVLI TR
Description
Ethernet ICs 2-Port Ethernet Switch/Repeater + Generic (8, 16-bit) bus interface(Lead Free)
Manufacturer
Micrel
Datasheet
1.KSZ8842-16MVL_TR.pdf
(141 pages)
Specifications of KSZ8842-16MVLI TR
Rohs
yes
Product
Ethernet Switches
Package / Case
LQFP-128
Mounting Style
SMD/SMT
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Bank 39 MAC Address Register 2 (0x02): MACAR2
This register contains the MAC address for the switch function. This MAC address is used for sending PAUSE frame.
Bank 39 MAC Address Register 3 (0x04): MACAR3
This register contains the MAC address for the switch function. This MAC address is used for sending PAUSE frame.
Bank 40 TOS Priority Control Register 1 (0x00): TOSR1
The Ipv4/Ipv6 ToS priority control registers implement a fully decoded,128-bit DSCP (Differentiated Services Code Point)
register used to determine priority from the 6-bit 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.
This register contains the ToS priority control for the switch function.
Micrel, Inc.
Bit
15-0
Bit
15-0
Bit
15-14
13-12
11-10
9-8
7-6
5-4
3-2
1-0
October 2007
Default
0xA1FF
Default
0xFFFF
Default
0
0
0
0
0
0
0
0
R/W
RW
R/W
RW
R/W
RW
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
MACA[31:16]
Specifies MAC address 2. This value has to be same as MARM in Bank2.
Description
MACA[15:0]
Specifies MAC address 3. This value has to be same as MARL in Bank2.
Description
DSCP[15:14]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x1c.
DSCP[13:12]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x18.
DSCP[11:10]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x14.
DSCP[9:8]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x10.
DSCP[7:6]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x0c.
DSCP[5:4]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x08.
DSCP[3:2]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x04.
DSCP[1:0]
The value in this field is used as the frame’s priority when bits [7:2] of it IP
TOS/DiffServ/Traffic Class value is 0x00.
79
KSZ8842-16/32 MQL/MVL/MVLI/MBL
M9999-102207-1.9
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