MT90870AG Zarlink, MT90870AG Datasheet - Page 66

• Manufacturer Part Number: MT90870AG
• Description: Switch Fabric 12K x 12K/8K x 4K 1.8V/3.3V 272-Pin BGA Tray
• Manufacturer: Zarlink

Specifications of MT90870AG

• Package: 272BGA
• Number Of Ports: 32
• Fabric Size: 12K x 12K|8K x 4K
• Switch Core: Non-Blocking|Blocking
• Port Speed: 2.048|4.096|8.192|16.384 Mbps
• Operating Supply Voltage: 1.8|3.3 V

13.11.3
Address 00CAh
Backplane Receive BER Length Register (BRXBLR) defines how many channels in each frame the BER sequence
will be transmitted. The BRXBLR register is configured as follows:
13.11.4
Address 00CBh
Backplane BER Start Receive Register defines the Input Stream and the Start Channel in which the BER sequence
shall be received. The BBSRR register is configured as follows:
13.11.5
Address 00CCh
Backplane BER Count Register contains the number of counted errors. This register is read only. The BBCR
register is configured as follows:
15-14
13-9
15-9
15-0
8-0
8-0
Bit
Bit
Bit
BBRSA(4:0)
BBRCA(8:0)
BRXBL(8:0)
Backplane Receive BER Length Register (BRXBLR)
Backplane BER Start Receive Register (BBSRR)
Backplane BER Count Register (BBCR)
Reserved
BBC(15:0)
Reserved
Name
Name
Name
Table 39 - Backplane BER Start Receive Register (BBSRR) Bits
Table 38 - Backplane Receive BER Length (BRXBLR) Bits
Reset
Reset
Reset
Table 40 - Backplane BER Count Register (BBCR) Bits
0
0
0
0
0
0
Reserved.
Backplane Receive BER Length Bits
The binary value of these bits define the number of channels in addition to the
Start Channel allocated for the BER receiver. (i.e. Total Channels = Start
Channel + BRXBL value)
Reserved.
Backplane BER Receive Stream Address Bits
The binary value of these bits defines the Backplane input stream that
receives the BER data.
Backplane BER Receive Channel Address Bits
The binary value of these bits define the Backplane input start channel in
which the BER data will be received.
Backplane Bit Error Rate Count
The binary value of these bits define the Backplane Bit Error count.
Zarlink Semiconductor Inc.
MT90870
66
Description
Description
Description
Data Sheet