VXI Microwave Matrix Offset Register 0x06 Read and Write, Reserved Register 0x0A Read Only

VXI Technology, Inc.

Offset Register (0x06) — Read and Write

D15-D0

A24/A32 Memory

Offset

The value written to this 16-bit register, times 256, sets the base address of the A24 memory space used by the module. The value written to this 16-bit register, times 65,536, sets the base address of the A32 memory space used by the module. A read from this register reflects the previously written value. Because of the required memory size, bits D4 - D0 are disregarded on writes and always read back as 0. Upon receiving a hard reset, all bits in this register are set to 0. A soft reset does not affect the value in this register.

Reserved Register (0x0A) — Read Only

D15-D0

Not Implemented

Always read back as FFFF16

Reserved Register (0x0C) — Read Only

D15-D0

Not Implemented

Always read back as FFFF16

	Version Number Register (0x0E) — Read Only
D15-D8	Firmware Version	Not applicable, reads back as 0016
	Number
D7-D4	Major Hardware	Depends on the specific hardware revision of the SMIP II interface board.
	Version Number
D3-D0	Minor Hardware	Depends on the specific hardware revision of the SMIP II interface board.
	Version Number

Interrupt Status Register (0x1A) — Read Only

D15	Scan Function done	The latest scan list update is complete.
D14	Openbus Active Event	The Openbus was activated by one or more programmed inputs. See
	true	description of the Openbus in the module register section.
D13-D9	Unused	Data written to these bits have no effect.
		The programmed Busy signal from the module has timed out. This
D8	Module Busy Complete	indicates that the relays actuated for that Busy cycle have settled and a
		measurement may take place.
D7-D0	Reserved	Always reads back as FFFF16

Note: This status register may be used in a polled fashion rather than allowing the events above to generate an Interrupt. A read of this register will clear any active bits. Bits that are not set, or are about to be set are not affected by a read of this register.

24 SM7100 Programming