adm6999ux Infineon Technologies Corporation, adm6999ux Datasheet - Page 57

• Manufacturer Part Number: adm6999ux
• Description: Adm6999u 9 Port 10/100 Mb/s Single Chip Ethernet Switch Controller
• Manufacturer: Infineon Technologies Corporation

Field
SAF
VM
SHIFT
Data Sheet
Bits
15:12
11
10:8
Type
rw
rw
rw
Description
Special Address Forwarding
IEEE 802.3 reserved DA forward or drop police
1101
Bit[15]
Control reserved MAC (0180C2000010-0180C20000FF)
0
1
Bit[14]
Control reserved MAC (0180C2000002- 0180C200000F)
0
1
Bit[13]
Control reserved MAC (0180C2000001)
0
1
Bit[12]
Control reserved MAC (0180C2000000)
0
1
VLAN Mode
Select 16 or 32 VLAN group.
0
1
Tag Shift for VLAN Grouping
VLAN Tagshift register. ADM6999U/UX will select 4/5 bit from total 12 bit
VID as VLAN groupreference. Select 4 or 5 bit from VID depend on bit 11
setting. For example Bit[10:8] = 001, Bit11 = 0,then ADM6999U/UX will
select packet VID4~VID1 as VLAN group mapping. It is very flexible for
user on VLAN grouping.
00C
16 VLAN Mode
0
1
2
3
4
5
6
7
32 VLAN Mode
0
1
2
3
4
5
6
7
B
B
B
B
B
B
B
B
B
B
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
H
H
, Discard
, Forward, default
, Discard
, Forward, default
, Discard, default
, Forward
, Discard
, Forward, default
, 16 VLAN group,default
, 32 VLAN group,default
, VID[3:0]
, VID[4:1]
, VID[5:2]
, VID[6:3]
, VID[7:4]
, VID[8:5]
, VID[9:6]
, VID[10:7]
, VID[4:0]
, VID[5:1]
, VID[6:2]
, VID[7:3]
, VID[8:4]
, VID[9:5]
, VID[10:6]
, VID[11:7]
, default
, default
57
Rev. 1.42, 2005-11-25
ADM6999U/UX
Data Sheet
Descriptions