afbr-820bz Avago Technologies, afbr-820bz Datasheet - Page 25

• Manufacturer Part Number: afbr-820bz
• Description: Twelve-channel Transmitter And Receiver Pluggable, Parallel-fiber-optic Modules
• Manufacturer: Avago Technologies

1. Memory Map Overview
The memory is structured as a single address, multiple
page approach after that in the XFP MSA and adapted
by QSFP MSA for multi-channel transceivers. Figure 27
presents an overview of the memory structure showing a
lower page (5ih) and two upper pages (00h and 01h). As
with XFP and QSFP, time sensitive, dynamic and/or high
interest information are contained in the base, i.e. lower,
page. Here the upper page 00h contains the serial id
Figure 27. Two-Wire Serial Address 5ih Page Structure
25
128-129
132-133
134-137
138-143
144-151
152-170
171-188
189-204
205-212
213-222
224-255
106-118 RW Masks: LOS, Fault, Module Flags
119-126 RW Reserved
90-105
28-39
40-87
88-89
Byte
Byte
3-27
127
130
131
223
1-2
0
Type Lower Memory Page 5ih
Type Upper Memory Page 00h
RO
RO
RO
RO
RO
RO
RW Controls (Volatile)
RW Upper Page Select Byte
RO Identifiers
RO Description: Power Supplies
RO Description: Max Case Temp
RO Description: Min/Max Signal Rate
RO Description: Wavelength
RO Description: Supported Functions
RO Reserved
RO Vendor Information: Name & OUI
RO Vendor Information: PN & PN rev
RO Vendor Information: SN
RO Vendor Information: Date Code
RO Vendor Information: CLEI Code
RO Checksum
RO Vendor Specific
Identifier
Status
Interrupt Flags: LOS, Fault, Monitor
Module Monitors
Channel Monitors
Elapsed Operating Time
128-175 RO
176-223 RO
225-243 RW Controls (Non-volatile)
244-255 RW Masks: Channel Monitor Flags
Byte
224
Type Upper Memory Page 01h
RO
Module Thresholds
Channel Thresholds
Checksum
information, again following the style of XFP and QSFP.
The 01h upper table contains static threshold information,
configuration controls and flag masks.
Unless otherwise stated all reserved bytes are coded 00h
and all reserved bits are coded 0b. Non-volatile read-
write bits are labeled RWn and volatile read-write bits are
labeled RWv.