MU9C8338 10/100Mb Ethernet Filter Interface
Applications
APPLICATIONS
Cascading of LANCAMs
The MUSIC MU9Cx480B LANCAM family can be
vertically cascaded to allow long station lists to be
implemented. The MU9C8338 LANCAM interface timing
allows up to four LANCAMs to be cascaded as shown in
Figure 6.
and /MI inputs respectively. When cascading LANCAMs,
a match flag ripple delay is introduced. Care must be taken
to ensure that the tMIVKH setup time is satisfied in
multiple LANCAM designs. Please refer to the LANCAM
B Family Data Sheet for a comprehensive description of
the device and how to calculate the ripple delay.
When LANCAMs are cascaded in this way, the system
Full and Match flags are connected to the MU9C8338 /FI
DQ[15:0]
/E
Vdd
Gnd
/MI
/FI
/W
CAM 0
/FF
/CM
/EC
/MF
/MI
/RESET
DQ[15:0]
/E
/FI
/W
CAM 1
/FF
/CM
/EC
/MF
/MI
/RESET
DQ[15:0]
/E
/FI
/W
CAM 2
/FF
/CM
/EC
/MF
/MI
/RESET
DQ[15:0]
/E
/FI
/W
CAM 3
/FF
System Full Flag
/CM
/EC
/MF
/RESET
System Match Flag
Figure 6: LANCAM Cascading
18
Rev. 1a
MUSIC [ MUSIC SEMICONDUCTORS ]
