MT90871 Zarlink Semiconductor, MT90871 Datasheet - Page 45

• Manufacturer Part Number: MT90871
• Description: Flexible 8K Digital Switch (F8KDX)
• Manufacturer: Zarlink Semiconductor

Data Sheet
13.9.1
The binary value of these two bits is the amount of offset that a particular stream output can be advanced. When
the advancement is 0, the serial output stream has the normal alignment with the Backplane frame pulse.
13.9.2
13.9.3
Address 00C3h.
Local BER Start Send Register defines the output channel and the stream in which the BER sequence starts to
be transmitted. The LBSSR register is configured as follows:
13.9.4
Address 00C4h
Local BER Transmit Length Register (LTXBLR) defines how many channels the BER sequence will be transmitted
during each frame. The LTXBLR register is configured as follows:
15-8
7-0
Bit
15-13
12-8
Bit
7-0
LTXBL(7:0)
Reserved
Name
Backplane Output Advancement Bits 1-0 (BOA1-BOA0)
Local Bit Error Rate (BER) Registers
Local Transmit BER Length Register (LTXBLR)
Local BER Start Send Register (LBSSR)
Table 27- Backplane Output Advancement (BOAR) Programming Table
LBSSA(4:0)
LBSCA(7:0)
Reserved
Name
Table 29- Local Transmit BER Length Register (LTXBLR) Bits
Reset
0
0
Backplane Output Advancement For
Table 28- Local BER Start Send Register (LBSSR) Bits
2Mb/s, 4Mb/s, 8Mb/s & 16Mb/s
Reserved.
Local Transmit BER Length Bits
The binary value of these bits define the number of channels in addition to the
Start Channel that the BER data will be transmitted on. (i.e. Total Channels =
Start Channel + LTXBL value)
Clock Rate 131.072 MHz
Reset
0
0
0
0 (Default)
-4 cycles
-6 cycles
-2 cycle
Reserved.
Local BER Send Stream Address Bits.
The binary value of these bits refers to the Local output stream
which carries the BER data.
Local BER Send Channel Address Bits.
The binary value of these bits refers to the Local output channel in
which the BER data starts to be sent.
Zarlink Semiconductor Inc.
Description
Advancement Bits
BOA1
Corresponding
0
0
1
1
Description
BOA0
0
1
0
1
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