MT90820AL Zarlink, MT90820AL Datasheet - Page 18

• Manufacturer Part Number: MT90820AL
• Description: Switch Fabric 2K x 2K/1K x 1K/512 x 512 131.072Mbps 5V 100-Pin MQFP Tray
• Manufacturer: Zarlink

Specifications of MT90820AL

• Package: 100MQFP
• Number Of Ports: 16
• Fabric Size: 2K x 2K|1K x 1K|512 x 512
• Switching Bandwidth: 131.072 Mbps
• Switch Core: Non-Blocking
• Port Speed: 2.048|4.096|8.192 Mbps
• Operating Supply Voltage: 5 V

Input Stream
Input Stream
Input Stream
Input Stream
ST-BUS F0i
STi Stream
STi Stream
STi Stream
STi Stream
GCI F0i
+ 0.5 clock period shift
+1.0 clock period shift
+1.5 clock period shift
+2.0 clock period shift
+2.5 clock period shift
+3.0 clock period shift
+3.5 clock period shift
+4.0 clock period shift
+4.5 clock period shift
CLK
CLK
Table 12 - Offset Bits (OFn2, OFn1, OFn0, DLEn) & Frame Delay Bits (FD11, FD2-0)
Input Stream
Offset
Figure 4 - Examples for Input Offset Delay Timing
Bit 7
Bit 0
Bit 7
Bit 0
FD11
0
1
0
1
0
1
0
1
0
Measurement Result from
Bit 7
Bit 0
Zarlink Semiconductor Inc.
Frame Delay Bits
MT90820
Bit 7
Bit 0
FD2
0
0
0
0
0
0
0
1
1
18
FD1
0
0
0
1
1
1
1
0
0
FD0
0
1
1
0
0
1
1
0
0
denotes the 3/4 point of the bit cell
denotes the 3/4 point of the bit cell
OFn2
0
0
0
0
0
0
0
1
1
offset=0, DLE=0
offset=1, DLE=0
offset=0, DLE=1
offset=1, DLE=1
offset=0, DLE=0
offset=1, DLE=0
offset=0, DLE=1
offset=1, DLE=1
OFn1
Corresponding
0
0
0
1
1
1
1
0
0
Offset Bits
OFn0
0
1
1
0
0
1
1
0
0
Data Sheet
DLEn
1
0
1
0
1
0
1
0
1