The special codes that the keyboard uses to communicate with the main unit are summarized here. About the special codes. ------------------------ The special codes are 8-bit numbers; there is no up/down flag associated with them. However, the transmission bit order is the same as previously described. Code Name Meaning -------------------------------------------------------------- 78 Reset warning . Ctrl-Amiga-Amiga has been hit - computer will be reset in 10 seconds. (see text) F9 Last key code bad, next code is the same code retransmitted (used when keyboard and main unit get out of sync ). FA Keyboard output buffer overflow FB Unused (was controller failure) FC Keyboard selftest failed FD Initiate power-up key stream (keys pressed at powerup) FE Terminate power-up key stream FF Unused (was interrupt)
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