DEC VT220 - Page 157

The following eight commands control the keyclick and bell sounds.
• Disable keyclick
• Enable keyclick and set volume
• Disable CTRL keyclick
• Enable CTRL keyclick
• Sound keyclick
• Disable bell
• Enable bell and set volume
• Sound bell
The following four commands are related to control over the
autorepeat mode.
• Temporary autorepeat inhibit -- stops autorepeat for a
specific key only. It resumes automatically when another
key is pressed.
• Enable autorepeat across the board -- starts transmission
of metronome codes without affecting autorepeat timing or
keyboard division.
• Disable autorepeat across the board -- stops transmission
of metronome codes without affecting autorepeat timing or
keyboard division.
• Change all autorepeat to down only changes all
keyboard autorepeating divisions to down only mode.
The following are three other miscellaneous commands.
• Request keyboard ID -- causes the keyboard to send the
two byte ID (firmware and hardware). The keyboard does
not jump to the power-up sequence.
Reinitiate keyboard -- causes the keyboard to jump to the
power-up sequence. Transmission to the keyboard should be
held until the host processor receives the last byte of
the power-up self-test.
• Reinstate defaults sets the following functions back
to the default settings after a successful power-up
self-test.
Division mode settings
Autorepeat interval and timeout rates
Autorepeat buffer selections
Audio volume
Control key keyclick
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