Tektronix 071-0590-00 user manual Standard Event Status Enable Register

Using GPIB, RS-232

Standard Event Status Enable Register

Different conditions within the Standard Event Status Register can be individually enabled or disabled. The Standard Event Status Enable Register contains enabling bits. Each time one of the event conditions or one of the enabling bits change, the status of the ESB bit is re-evaluated. If any status bit is set and its corresponding enable bit is set, the ESB bit is set also.

Each time the GB1400 is powered on, this byte is reset so that no bits are enabled. The bit definition for the Standard Event Status Enable Register is the same as it is for the Standard Event Status Register.

Test Status Event Register (Analyzer only)

The TSB bit is the summary of the Test Status Event Register. This byte has an enabling byte which works in a similar manner to the above Status Byte. The individual bits within the Test Status Event Register represent the different conditions which might cause a Test Event. The bit definitions for the Test Status Event Register are as follows.

Bit 1	End-of Window	Set at the end of each window period
	condition
Bit 2	End-of-Test condition	Set at the end of each Test
Bit 3	Threshold Error	Set whenever Test is running and Errored
	condition	Second occurs, where error rate is above Test
		Error Rate Threshold
Bit 4	Synchronization Loss	Set whenever SYNC LOSS occurs
	condition
Bit 5	Phase Error condition	Set whenever a Phase Error occurs
Bit 6	Auto Synchronization	Set whenever AUTO SEARCH locks on a Data
	complete	Pattern
Bit 7		Not Used
Bit 8		Not Used

Test Status Event Enable Register (Analyzer only)

The different conditions within the Test Status Event Register can be individually enabled and disabled. The Test Status Event Enable Register contains enabling bits. Each time one of the event conditions or one of the enabling bits change, the status of the TSB bit is re-evaluated. If any status bit is set and its corresponding enable bit is set, the TSB bit will set. Each time the GB1400 is powered on, this byte is reset so that no bits are enabled. The bit definition for the Test Status Event Enable Register is the same as for the Test Status Event Register.

GB1400 User Manual D-5