Toshiba 2000 user manual RAS Function Overview, RAS Hardware, RAS Support Software

Chapter 5 RAS Function

5.1 RAS Function Overview

The RAS hardware and software provide the following functions.

5.1.1	RAS Hardware
		Internal diagnosis	Circuit that detects internal abnormal conditions.
			• WDT monitoring
			• DRAM ECC error detection
			• CPU temperature/CPU peripheral temperature rise detection
			• Power voltage drop detection
			• C2 built-in Battery failure detection
		Power ON/OFF function	OFF detection of an input power supply, and control of a power
			supply.
		Reset function	The function reset at the time of abnormalities
			• Compulsive initialization switch (INZ switch)
			• Compulsive hardware reset switch (RST switch)
		Interrupt output function	Non-maskable interrupts (NMI) and maskable interrupts (MI) are
			available.
			NMI: Power off, WDT, initialize switch control
			MI: CPU peripheral temperature rise, interval timer
			(MI can be enabled/disabled by software)
		RAS memory function	Equipped with battery backed RAS memory (64K bytes) to save
			information while running.
			• Saving of error information
			• Saving of user information

5.1.2RAS Support Software

This section provides a general description of the RAS support software. Refer to the "Computer module C2/C3 Windows User’s Manual (6F8C0894)" for more information concerning RAS function software processing.

The Windows version C2 is shipped with the RAS support software installed.

The RAS support software consists of RAS hardware drivers and RAS software libraries and there are two ways to use it.

From the RAS windows	It can be used simply by registering the RAS window parameter
	during installation.
From the user program	Used by creating a user application program using RAS
	commands in VC (Visual C++) or VB (Visual Basic) for the
	specific purpose.
	Sufficient knowledge of the hardware functions is necessary to
	create the program.

36 Computer module C2PU37 User’s Manual