adm6999ux Infineon Technologies Corporation, adm6999ux Datasheet - Page 44

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

Table 16
ADM6996
Port0
–
Port1
–
Port2
–
Port3
Port4
Port5 MII
Below is Router old architecture. The disadvantages of this are:
1. WAN port only support 10M Half-Duplex and non-MDIX function.
2. Need extra 10M NIC cost.
3. ISA bus will become bottleneck of whole system.
Figure 6
Below is new architecture by using ADM6999U/UX serial chip VLAN function. The advantages of below are:
1. WAN Port can upgrade to 100/10 Full/Half, Auto MDIX.
2. WAN/LAN Port is programmable and put on same Switch.
3. No extra NIC and save the cost.
4. High bandwidth of MII port up to 200M speed.
Data Sheet
ADM6996 Port Mapping with ADM6999U/UX
Router old architecture
Port0
Port4 MAC MII Port
4 100/10 LAN Port
Port1
CPU with
one MII
MII
Port2
44
ADM6999U/UX
Port0
Port1
Port2
Port3
Port4
Port5
Port6
Port7
Port8 MII
Port3
ISA
10M Half Non
MDIX WAN Port
10M Half
NIC
Rev. 1.42, 2005-11-25
ADM6999U/UX
Data Sheet
Descriptions