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Chapter 4 Functional Description
ATCA-C110/1G Installation and Use Manual
41
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System Management
The ATCA-C110 carries an Intelligent Platform Management Controller (IPMC) entity. The
IPMC is a chassis management entity on individual cards that monitor voltages, temperature,
and chassis characteristics. The IPMC communicates with the shelf manager over the IPMB
I
2
C bus. The IPMI interface is described in the following section.
For details about accessing the IPMC via IPMI commands as well as Sensor Data Records
(SDRs) and Field Replaceable Unit (FRU) information provided by the blade, refer to the
ATCA-C110/1G Preliminary IPMI Reference Manual as listed in Appendix D, Related
Documentation.
IPMI
IPMI support on ATCA-C110/1G is implemented using an IPMC block built around the Atmel
AVR micro-controller family. The IPMC block implementation provides:
■ IPMB Interfaces
Two IPMB interfaces to the back-plane
One local IPMB interface for interfacing the MMCs of the AMC modules and the RTM
■ Private I2C Bus for non-intelligent I
2
C devices
■ Payload Interface on page 43
Serial Port 0, routed to the ARTM-C110, is used as general purpose/debug serial port
Serial Port 1 is used for communication between the Processor and IPMI
■ 8-bit Analog-to-Digital Converters (ADC) - Analog voltage sensor inputs
■ AMC Power Limiting Control
Figure 4-2. Primary and Secondary Boot Flash Connections
Default
Primary
Boot Flash
IPMI
Block
Strapping
Option
MPC8540
Programmable
Logic CPLD
Backup
Secondary
Boot Flash
Boot Flash
Select Signal
BOOT_CS#
BOOT_SEL
Force boot
from Recovery Flash
CS0#
RECOV_CS#