P
R
E
L
I
M
I
N
A
R
Y
I
N
F
O
R
M
A
T
I
O
N
XpressFlow-2020 Series –
Ethernet Switch Chipset
SC220
XpressFlow Engine
2.1.2 Bus Cycle Waveforms
S_CLK
C_CE#
C_CM#
C_EC#
C_WE#
C_MF#
C_D[15:0]
Write
MAC Address MAC Address
Byte 0, & 1 Byte 2, & 3
Write
Write
MAC Address
Byte 4, & 5
Read
MAC Control
Buffer Pointer
Typical MAC Address Compare Operation
Note: Refer to MUSIC MU9C1480 CAM data sheet for detailed timing parameters.
© 1998 Vertex Networks, Inc.
1999
12
Rev. 4.5 – February