Artesyn ATCA-F120 Installation and Use (August 2014) - Manual (Page 80)

Functional Description
ATCA-F120 Installation and Use (6806800D06J) 80
At the same time, port 0 of the Update channel is used for a connection to the CPU of the
partner ATCA-F120 in the system. The following figure illustrates this configuration.
4.10 Intelligent Peripheral Management Controller
The blade provides an Intelligent Peripheral Management Controller (IPMC) unit based on
three Atmel ATmega AVR micro controllers. One micro controller, the Atmega2561V serves as
IPMC Master Controller (IMC) and provides an on-board flash memory of 256 KBytes. The
remaining two micro controllers, both are Atmega168L devices, serve as IPMC Slave
Controllers (ISC) and provide an on-board memory flash memory of 168 kBytes each. Both are
referred to as ISC0 and ISC1.
An installed RTM furthermore provides an Mezzanine Management Controller (MMC) which is
connected to the IPMC through an IPMB-L bus. The MMC contains an Atmega 128L micro
controller. For details about the MMC refer to the documentation delivered with the respective
RTM.
Figure 4-5 Shelf Manager Cross Connection via Base Channel