Specifications

Appendix C I2C Interface Management Installation and Operation Manual
C-2 Serial Link Message Format MiRICi-E3T3 Ver. 2.2
The first sector contains addresses 0x00-0x5F that are reserved for identification
parameters.
The second sector contains addresses 0x60 to 0x7E that are reserved for vendor
specifics.
MiRICi-E3T3 uses sixteen locations in the third sector (addresses 0x80 and up) for
configuration, diagnostic, and status monitoring parameters.
MiRICi-E3T3 processes two message formats:
• Two wire serial link message. Used in standard I
2
C to read the ID table
parameters.
• Management message. The host sends information to MiRICi-E3T3,
encapsulated in the I
2
C message for managing, configuring, and monitoring
MiRICi-E3T3.
Addresses and values are provided in hexadecimal format.
C.2 Serial Link Message Format
This message format defines the structure used to read the ID table parameters.
The process of reading the ID table parameters complies with the MSA document
and consists of two main steps:
1. Write message from the host:
 Includes I
2
C Control and Write bits in the first byte.
 The Slave Address byte includes 0xA0h.
 The Data byte includes 0x00, the first address to be read.
2. Read message from the host:
 Includes I
2
C Control and Read bits in the first byte.
 MiRICi-E3T3 replies with acknowledgement (zero).
 The Data byte is clocked out from MiRICi-E3T3 to the host.
 The host acknowledges each byte or replies with STOP to terminate the
process.
Control
Start
Data
R/W
Data