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3276/78 Emulation Mode
(A,al
A) Switch
The Dual Case/Mono Case
(A,a/A)
Switch determines how the terminal displays characters
upon the screen. Selecting Dual Case (A,a) prints both uppercase and lowercase letters while
selecting Mono Case (A) restricts the display to uppercase letters. Regardless of the setting of
this switch, the terminal transmits the code for the cCpressed" character. For this reason, the
HP 2625A doesn't support this feature.
FIELD-ORIENTED CURSOR MOVEMENT KEYS
Because a major use of the IBM 3278 terminal is data entry, four keys provide easy access to
the next cCinput" field. These keys are
• TAB FORWARD
• BACKTAB
• NEW LINE
• HOME
For each key, the screen's format determines the cursor's final position.
The Tab Keys
The Tab keys access the next or previous input field. Both Tab keys repeat their function if
you continue to hold the key down.
Tab Forward
IBM 3276. Pressing the
TAB FORWARD
key advances the cursor to the first character
position in the next unprotected field. Depending upon the screen's format, the cursor may
wrap over lines and around screen boundaries.
When the screen contains either an unformatted display or a formatted display with only
protected fields, the
TAB FORWARD
key cChomes" the cursor to the first character position on
the first line.
HP 2625A. Pressing the _
key duplicates these operations.
Back Tab
IBM 3276. In unprotected fields, the Back Tab action depends upon the cursor's initial
position:
• When the cursor is within a field, pressing the
BACK TAB
key moves the cursor to the
beginning of that field.
• When the cursor is at the first character position of a field, pressing the
BACK TAB
key
moves the cursor to the first character position of the previous unprotected field.
F-27
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