Artesyn ATCA-MF106 Installation and Use (September 2014) - Manual (Page 32)

Introduction
ATCA-MF106 Installation and Use (6806800M62B) 32
 MicroSD memory interface
 Serial EEPROM for environment variable storage
 Redundant Boot flash device
The ShMC consists of two coupled microcontrollers:
 IPMC Master Controller (IMC) based on an Atmega 128
 IPMC Slave Controller (ISC), based on an Atmega 8.
The following block diagram outlines the major hardware components.
Figure 1-4 Block Diagram