SC220 ZARLINK [Zarlink Semiconductor Inc], SC220 Datasheet - Page 17

• Manufacturer Part Number: SC220
• Description: XpressFlow 2020 Ethernet Routing Switch Chipset
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

XpressFlow-2020 Series –
Ethernet Switch Chipset
2.3.2
2.3.3 Intel 486 Processor Interface
© 1998 Vertex Networks, Inc.
1999
P_D[31:0]
P_D[31:0] (out)
{D[0:31]}
P_D[31:0]
P_D[31:0] (in)
{D[0:31]}
{CLKOUT}
{RD/WR#}
P_A[11:1]
{A[20:30]}
P_A[11:1]
P_RDY#
P_RDY#
Motorola MPC801 Processor Interface
P_ADS#
Note: Mnemonics within {} are the equivalent signals defined by MPC801
P_ADS#
P_W/R#
P_RWC
P_CLK
P_CS#
P_CLK
P_CS#
{TS#}
{TA#}
(out)
(in)
P
R
E
Typical Motorola MPC801 CPU I/O Access Operations
L
I
M
Typical 486 CPU I/O Access Operations
I
N
A
R
Y
I
16
N
F
O
R
M
A
T
I
XpressFlow Engine
O
N
Rev. 4.5 – February
SC220