HP KAYAK XU800 manual Vpz XG9AQR2, Following table shows the available FWH features

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FirmWare Hub (82802AB)

Vpz XG9AQR2

The FWH (also known as flash memory) is connected to the LPC bus. It contains 4 Mbit (512 kB) of flash memory.

The hardware features of the FWH include: a Random Number Generator (RNG), five General Purpose Inputs (GPI), register-based block locking and hardware-based locking. An integrated combination of logic features and non-volatile memory enables better protection for the storage and update of system code and data, adds flexibility through additional GPIs, and allows for quicker introduction of security/manageability features.

The following table shows the available FWH features.

	Otp		Otpt
•	Platform Compatibility:	•	Two Configurable Interfaces:
	❒ Enables security-enhanced platform infrastructure.		❒ FirmWare Hub interface for system operation.
	❒ Part of the Intel I840 chipset.		❒ Address/Address Multiplexed (A/A Mux) interface.
• FirmWare Hub Interface Mode:		• 4 Mbits of Flash Memory for system code/data non-volatile
	❒ Five signal communication interface supporting x8 reads and		storage:
	writes.		❒ Symmetrically blocked, 64 Kbyte memory sections.
	❒ Register-based read and write protection for each code/data		❒ Automated byte program and block erase through an
	storage blocks.		integrated WSM (Write State Machine).
	❒ Five additional GPIs for system design and flexibility.
	❒ A hardware RNG (Random Number Generator).
	❒ Integrated CUI (Command User Interface) for requesting
	access to locking, programming and erasing options. It also
	handles requests for data residing in status, ID and block lock
	registers.
	❒ Operates with 33 MHz PCI clock and 3.3 V input/output.
• A/A Mux Interface/Mode, supporting:		•	Power Supply Specifications:
	❒ 11-pin multiplexed address and 8-pin data I/O interface.		❒ Vcc: 3.3 V +/- 0.3 V.
	❒ Fast on-board or out-of-system programming.		❒ Vpp: 3.3 V and 12 V for fast programming, 80 ns.
•	Industry Standard Packages:	• Case Temperature Operating Range.
	❒ 40L TSOP or 32L PLCC.

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