Control Register - Read and Write continued | VXI SM7100, Microwave Matrix

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Control Register - Read and Write (continued)

0= Non-inverted Front Panel Open signal polarity

1= Inverted Front Panel Open signal polarity Pon state = 0

	Front Panel	Non-inverted: If set in pulse mode, the Front Panel Open signal will generate a
D1	Open
	Open	reset pulse on a falling edge. If set in level mode, the Front Panel Open signal will
	Signal
	Signal	generate a reset signal on a low input signal.
	Polarity Bit	generate a reset signal on a low input signal.
	Polarity Bit
		Inverted: If set in pulse mode, the Front Panel Open signal will generate a reset
		pulse on a rising edge. If set in level mode, the Front Panel Open signal will
		generate a reset signal on a high input signal.
		0 = Pulse mode
		1 = Level mode
		Pon state = 0
		Pulse mode: An edge seen at the Front Panel Open signal pin will generate a reset
		pulse that may be used to reset system relays. The pulse is of approximately 300 ns
		duration.
		Level mode: A level present on the Front Panel Open signal pin will generate a
	Front Panel	reset signal that may be used to reset system relays. This signal will remain active
	Front Panel	as long as the input is active.
D0	Open	On the front panel of most SMIP II plug-in modules, there are two pins for access
D0	Signal
	Operation	to the Front Panel Open signal of the module. These are the Front Panel Open
	Select Bit	signal pin and a ground reference pin. The purpose of the Front Panel Open signal
		is to allow user access to a configurable interlock feature that will reset all of the
		SMIP II system relays. The Front Panel Open signal may be used to reset the relays
		only on the module, which initiated the Front Panel Open signal fault condition. It
		also may be used to broadcast to all the other SMIP II plug-in modules installed in
		a SMIP II Interface Module via what is called the Openbus. Any plug-in module
		may be programmed to drive and/or listen to the Openbus. The Openbus signal
		may also be used to generate a wider chassis level fault signal via the TTL Trigger
		Bus (see the register definitions for A16 address space). The Front Panel Open
		signal is meant to be driven by either a switch closure or TTL/CMOS logic gate. It
		is pulled high on the module.

SM7100 Programming

VXI SM7100, Microwave Matrix user manual Control Register - Read and Write continued

Models: SM7100 Microwave Matrix