Using Keyrah V3
3.4.3 Boot Button
(4) The boot button has two functions:
• Press the button to “type” the shift-lock ADC value (see Shift-lock threshold)
• To enable mass storage mode for updating the firmware or flashing a keymap, press and
hold the button at power up, or hold the button for about 5 seconds (see 3.7 Using a custom
Keymap).
3.4.4 Overview
Keyboard Menu/Power Button Extra Button
Amiga 500 F12 - / -
Amiga 1200 F12 - / -
Atari ST Pause Escape
C64 F12 Escape
C16 F12 - / -
C128 F12 Escape
SX64 F12 Escape
PC XT F12 Escape
PC AT F12 Escape
CBM2 / 7x0 F12 Escape
PET / 8296 F12 Escape
11