Specifications
MiRIC-E1, MiRIC-T1 Ver. 1.5 SFP MSA Standard 4-1
Chapter 4
API Reference
4.1 Introduction
This section describes MiRIC-E1, MiRIC-T1 management channel, management
protocol and management parameters.
The host accesses MiRIC-E1, MiRIC-T1 via the I
2
C channel in order to identify the
device and perform management.
Two types of messages are described:
• I
2
C message – in standard I
2
C frame structure
• Management message – the message structure the host sends to the MiRIC-E1,
MiRIC-T1 encapsulated in the I
2
C message
All address and values in this section are given in hexadecimal.
4.2 SFP MSA Standard
MiRIC-E1, MiRIC-T1 comply with the MSA standard and hence have the same I
2
C
mechanism. MiRIC-E1, MiRIC-T1 follow the basic parameter map as outlined by
the MSA (as based on SFF 8472).
Figure 4-1 describes the mapping of page A0 as
seen by the host equipment.
MiRIC-E1, MiRIC-T1 identification parameters reside in page A0.
255
2 wire address 10100000 (A0h)
00
95
Serial ID Defined by
SFP MSA (96 bytes)
Vendor Specific
(32 bytes)
Reserved for SFP8079
(128 bytes)
127
5F
7F
FF
Figure 4-1. Page A0 mapping
As shown above, the second sector, addresses 0x60-0x7F are reserved for vendor
specifics. MiRIC-E1, MiRIC-T1 uses these addresses for configuration, diagnostic,
and status monitoring parameters.