MDS213 Datasheet, PDF (70/120 Pages) Zarlink Semiconductor Inc – 12-Port 10/100Mbps + 1Gbps Ethernet Switch

MDS213
Data Sheet
Bit [1:0] SC
System Clock Rate
00= 100Mhz
10=90Mhz
Default = 00
01 = 120Mhz
11= 80Mhz
Bit [2] IP
IRQ output polarity control
0 = active low output
Bit [3] SM
System Configuration mode
0=Nonblocking (For MDS213,
always equal to 0)
1=Blocking
SRAM Memory Characteristics
Power-up default =0
1 = active high output
Bit [4] ML
Bit [6:5] MT
Bit [8:7]
Buffer Memory Level, which can be either 2 chips or 4 chips.
0 = 2 memory chips
1 = 4 memory chips
Default = 0
Memory Chip Type
00 = 64K x 32-bit
10 = 256K x 32-bit
Default = 01
01 = 128K x 32-bit
11 = 512K x 32-bit
Reserved
Search Engine Configuration
Bit [9]
Bit [11:10]
SE_AGEN
HM
Aging enable, if which is true, the old MCT can be aged out.
0 = disable aging
Default = 1
1 = enable aging
Hashing Mode, each of which uses
different bits of MAC address to come
up with each bit of hashing key.
Default = 00
Bit [13:12]
Bit [14]
Bit [15]
Bit [16]
Bit [17]
HS
VSW
NoIPM
GLN
Partial Syn
enable
00=mode 0
0=mode 2
Hashing Size
00= 8
10= 10
VLAN Aware Switch
0 = VLAN Unaware
No IP Multicast
1 = IP Multicast Disable
Global Learning Disable, where CPU
shall disable global learning before
look into it as a whole piece.
1 = Learning Disable
Partial Synchronization enable for
MAC Table
0= Fully Synchronization for MCT
table
01=mode 1
11=mode 3
Default = 01
01= 9
11= TDB
Default = 0
1 = VLAN Aware
Default = 1
0 =IP Multicast Enable
Default = 0
0 = Learning Enable
Default=0
1= Partial Synchronization
for MCT table
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Zarlink Semiconductor Inc.