MT90869AG Zarlink, MT90869AG Datasheet - Page 66

• Manufacturer Part Number: MT90869AG
• Description: Switch Fabric 16K x 16K/8K x 8K 1.8V/3.3V 272-Pin BGA Tray
• Manufacturer: Zarlink

Specifications of MT90869AG

• Package: 272BGA
• Number Of Ports: 64
• Fabric Size: 16K x 16K|8K x 8K
• Switch Core: Non-Blocking|Blocking
• Port Speed: 8.192|4.096|2.048 Mbps
• Operating Supply Voltage: 1.8|3.3 V

13.12.2
Address 00EDh to 010Ch
thirty-two Local Output Bit Rate Registers allow the bit rate for each individual stream to be set to 2, 4, 8 or 16 Mb/s.
The LOBRR registers are configured as follows:
13.13
13.13.1
Address 010Dh to 012Ch
Thirty-two Backplane Input Bit Rate Registers allow the bit rate for each individual stream to be set to 2, 4, 8 or
16 Mb/s. These registers may be overridden by setting 32 Mb/s mode in the control register, in which case,
backplane streams 0-15 will operate at 32 Mb/s and backplane streams 16-31 will be unused. The BIBRR registers
are configured as follows:
(
(where n = 0 to 31)
BIBRn Bit
for n=0 to 31)
LOBRn Bit
15-2
1-0
15-2
1-0
Backplane Bit Rate Registers
Local Output Bit Rate Resisters (LOBRR0-31)
Backplane Input Bit Rate Registers (BIBRR0-31)
BIBR(1:0)
Reserved
Name
LOBR(1:0)
Reserved
Table 45 - Backplane Input Bit Rate Register (BIBRRn) Bits
Name
Table 42 - Local Input Bit Rate (LIBR) Programming Table
Table 44 - Output Bit Rate (LOBR) Programming Register
Table 43 - Local Output Bit Rate Register (LOBRRn) Bits
LIBR1
LOBR1
0
0
1
1
Reset
0
0
1
1
0
0
Reset
0
0
Zarlink Semiconductor Inc.
LOBR0
Reserved
Backplane Input Bit Rate
LIBR0
0
1
0
1
0
1
0
1
MT90869
Reserved
Local Output Bit Rate
66
Bit rate for stream n
Bit rate for stream n
16 Mb/s
2 Mb/s
4 Mb/s
8 Mb/s
16 Mb/s
2 Mb/s
4 Mb/s
8 Mb/s
Description
Description
Data Sheet