Tektronix 071-0590-00 user manual Pattern Controls and Function Keys

Functional Overview

Pattern Controls and Function Keys

The PATTERN section of both the Analyzer and Generator front panels contains two basic types or groups of controls: "pattern" and "function". The four function or "soft" keys—F1, F2, F3, and F4—have different functions depending on the current mode of the instrument. A primary function of these controls is to access and navigate the menu system. Pattern controls, which includes all other controls in the PATTERN section, are used to select edit, save, and recall test patterns.

PRBS	WORD	F1	F2	F3	F4	CLEAR	SET
	LENGTH
WORD			CLK	REF

	MSB
RECALL SAVE	1	2	3	4	5	6	7	8

∙PRBS: Press this key, and then the pattern up/down keys to select a PRBS pattern.

∙WORD: Press this key either to select a word or ROM pattern or to edit the current word pattern.

∙SAVE and RECALL: Use these keys to save and recall user-created word patterns to and from non-volatile memory. The standard GB1400 can store up to ten 16-bit or short word patterns. When equipped with the 1-Mbit option, the GB1400 Generator and Analyzer can store up to ten (10) 65-kbit patterns, depending upon the buffer size set for word memory.

∙WORD LENGTH: Press this key and then the up/down keys, to adjust the length of the current word pattern.

∙(− ↓, ): These are the pattern up/down keys. Their effect depends on which of the above pattern keys has been selected.

∙MSB 1 to 8: Use these keys to edit the displayed byte in the current word pattern. Each key will toggle one bit in the displayed byte.

∙CLEAR: Pressing this key forces all bits in the displayed byte to 0.

∙SET: Pressing this key forces all bits in the displayed byte to 1.

2-20 GB1400 User Manual