Term Definition
ROM Read Only Memory
RTC Real-Time Clock. Component of chipset on the baseboard.
RTOS Real Time Operation System
SCI Serial Communication Interface
SDC SCSI Daughter Card
SDR Sensor Data Record
SEEPROM Serial Electrically Erasable Programmable Read-Only Memory
SEL System Event Log
SERR System Error
SMBus
A two-wire interface based on the I2C protocol. The SMBus is a low-speed bus that provides positive
addressing for devices, as well as bus arbitration
SMI Server Management Interrupt. SMI is the highest priority nonmaskable interrupt
SMM Server Management Mode
SMS Server Management Software
SNMP Simple Network Management Protocol
SOL Serial Over LAN
UART Universal Asynchronous Receiver/Transmitter
UCT Upper Critical Threshold
UDP User Datagram Protocol
UNCT Upper Non-Critical Threshold
UNRT Upper Non-Recoverable Threshold
WDT Watchdog Timer
Word 16-bit quantity
Chapter 4 — BMC
59
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