PM8610-BIAP PMC [PMC-Sierra, Inc], PM8610-BIAP Datasheet - Page 85

• Manufacturer Part Number: PM8610-BIAP
• Description: SBS Telecom Standard Product Data Sheet Preliminary
• Manufacturer: PMC [PMC-Sierra, Inc]

10.18.1
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000168, Issue 3
The In-Band Link Controller block generates and terminates two bytes of fixed header and a
CRC-16 per every 36 byte in-band message. The two byte header provides control and status
between devices at the ends of the LVDS link. The CRC-16 is calculated over the entire 34 byte
in-band message and provides the terminating end the ability to detect errors in the in-band
message. The format of the in-band message and header bytes is shown in Figure 11 and Figure
12.
Figure 11 In-Band Signaling Channel Message Format
Figure 12 In-Band Signaling Channel Header Format
Table 23 In-band Message Header Fields
1 byte
Header1
Header1
Bit 7
Valid
Header2
Bit 7
Aux[7:0]
Field Name
Valid
Link[1:0]#
Page[1:0]#
User[2:0]#
In-Band Signaling Channel Fixed Overhead
Bit 6
Link[1:0]
Bit 6
1 byte
Header2
Received by SBS
Message slot contains a valid
message(1) or is empty(0). If empty
this message will not be put into Rx
Message FIFO (other header
information processed as usual)
Each bit indicates which Link to use,
working(0) or Protect(1). Other
algorithms are possible in indicate
Working or Protect over these 2 bits.
Each bit indicates which configuration
page to use, page (1) or page (0) for
the corresponding MSU. Page[1]
controls the IMSU configuration page
and Page[0] controls the OMSU
configuration page.
User defined bits which may be read
through the microprocessor interface.
User[2] is also output from the SBS on
the OUSER2 pin.
Bit 5
Bit 5
32 bytes
Free Format Information
Bit4
Page[1:0]
Bit4
Bit3
Bit3
SBS Telecom Standard Product Data Sheet
Transmitted by SBS
Message slot contains a valid
message(1) or is empty(0). The
header and CRC bytes are
transmitted regardless of the state of
this bit.
Each bit shows current Link in use,
working(0) or Protect(1). Other
algorithms are possible in indicate
Working or Protect over these 2 bits.
These bits are transmitted
immediately.
Each bit shows current control page in
use, page (1) or page (0) for the
corresponding MSU. Page[1]
indicates the IMSU configuration page
and Page[0] indicates the OMSU
configuration page
Only transmitted from the beginning of
the first message of the frame
User defined bits. User[2] is sourced
from the IUSER2 input to the SBS.
User[1:0] are sourced from an internal
register.
Bit2
User[2:0]
Bit2
Bit1
Bit1
2 bytes
CRC-16
Bit 0
Bit 0
Preliminary
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