Anritsu Configuration of MP1777A Status Registers, Register and Filter, Summary Message

6.1 Configuration of MP1777A Status Registers

Status registers excluding the registers specified by IEEE488.2 are configured as follows.

Condition	Transition	Event	Event enable
register	filter	register	register

. .

Register and Filter

Condition register

Transition filter

. .

-Summary Message

Fig. 6-2 Block Diagram of each Status Register

Table 6-1 Definitions of Register and Filter

Definition

Monitors the device status and performs real-time change in accordance with the device status.

For this reason, this register does not store the status.

Sets the condition register details to the event register

The transition filter comes in three modes, depending on the changes of the condition regis- ter to be evaluated.

Positive direction change: The event becomes true only when the corresponding condition

changes from false to true.

Negative direction change: The event becomes true only when the corresponding condition

	changes from true to false
Both direction change:	The event becomes true when a change into the positive or
	negative direction takes place.

Event register	Stores the output of the transition filter.
Event enable register	Selects the bit of corresponding Event Reg~sterto trigger a s h ~ foft summary message to true.