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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
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. |