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ADC Home > Documentation > Hardware > Device Managers and Drivers > PCI Card Services > Designing PCI Cards and Drivers for Power Macintosh Computers


  

Run-Time Abstraction Services (RTAS)

Certain hardware devices differ from machine to machine, but provide similar functions. RTAS provides such hardware-specific functions, including functions for accessing the real-time clock, nonvolatile RAM (NVRAM), restart, shutdown, and PCI configuration cycles. RTAS is not available to clients other than the Mac OS.


© 1999 Apple Computer, Inc. – (Last Updated 26 March 99)