VISUAL 100 - Autorepeat; Screen Presentation; Cursor Selection; Margin Bell

VISUAL TECHNOLOGY INCORPORATED, 540 MAIN STREET, TEWKSBURY, MA 01876
NOTE
In some applications enabling smooth scroll may necessitate a baud rate
limitation. To ensure that no data is lost, the Auto XON/XOFF feature
should be enabled and supported by the host computer when using smooth
scroll, see Section 3.2.2.12.
3.2.2. 7 Autorepeat
When enabled, the autorepeat feature allows each key to generate its' code at a rate of 30
times per second, when the key is depressed for more than 0.75 seconds. All keys will
be auto-repeating except for ESC, NO SCROLL, RETURN, TAB, and CTRL with any
key, when autorepeat is enabled. When autorepeat is disabled, each key will generate its
code once per key depression.
Autorepeat may also be selected by the host computer, see Section 5.3.2.12.
3.2.2.8 Screen Presentation
This feature allows characters to be formed by white dots on a black background or black
dots on a white background.
Screen presentation may also be changed by the host computer, see Sectfon 5.3.2.12.
3.2.2.9 Cursor Selection
The cursor marks the point where the next character will be entered on the screen and may
be defined to be either a blinking block or a blinking underline.
3.2.2.10 Margin Bell
When enabled, this feature allows a warning bell to be sounded when the cursor is eight
characters from the end of the current line. When disabled no warning bell will be sounded.
3.2.2.11 Keyclick
When enabled, this feature provides for an audible keyclick tone to be generated by the
VISUAL 100 every time a code-generating key is depressed. When disabled, no audible
tone will be sounded to indicate the generation of a code by key depression.
3.2.2.12 Auto XON/XOF F
This feature aflows the VISUAL 100 to automatically generate the XOFF (DC3) and XON
(DC1) synchronization codes to make sure data transmitted from the host computer is not
lost. When enabled, this feature will cause the XOF F code to be transmitted when; the
receive FIFO buffer is almost full, the NO SCRO LL key is depressed, SET-UP mode is
entered, or CTR L-S is depressed.
The XON code will be automatically transmitted to resume host transmission when; the
receive FIFO buffer is almost empty, the NO SCROLL key is depressed again, SET-UP
mode is exited, or CTR L-0 is depressed.
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