Acronyms
Term Definition
A/D Analog to Digital
ACPI Advanced Configuration and Power Interface
ASF Alerting Standart Forum
Asserted
Active-high (positive true) signals are asserted when in the high electrical state (near power potential).
Active-low (negative true) signals are asserted when in the low electrical state (near ground potential).
BIOS Basic Input/Output System
BIST Built-In Self Test
BMC
At the heart of the IPMI architecture is a microcontroller called the Baseboard management controller
(BMC)
Bridge Circuitry connecting one computer bus to another, allowing an agent on one to access the other
BSP Bootstrap processor
byte 8-bit quantity
CLI Command Line Interface
CMOS
In terms of this specification, this describes the PC-AT compatible region of battery-backed 128 bytes of
memory, which normally resides on the baseboard
CPU Central Processing Unit
Deasserted
A signal is deasserted when in te inactive state. Active-low signal names have “_L” appended to the end
of the signal mnemonic. Active-high signal names have no “_L” suffix. To reduce confusion when
referring to active-high and active-low signals, the terms one/zero, high/low, and true/false are not used
when describing signal states.
DTC Data Transfer Controller
EEPROM Electrically Erasable Programmable Read-Only Memory
EMP Emergency Management Port
FRU Field Replaceable Unit
GB 1024 MB.
GPIO General Purpose Input/Out
HSC Hot-Swap Controller
Hz Hertz (1 cycle/second)
I
2
C Inter-Integrated Circuit bus
IANA Internet Assigned Numbers Authority
IBF Input buffer
ICH I/O Controller Hub
ICMB Intelligent Chassis Management Bus
IERR Internal Error
IP Internet Protocol
IPMB Intelligent Platform Management Bus
Chapter 4 — BMC
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