INPUT MODE ..........................................324 OUTPUT MODE .........................................324 BIDIRECTIONAL FEATURE ...............................325 Interrupt Control Register (ICR) .......................325 READ INTERRUPT CONTROL REGISTER .....................326 WRITE INTERRUPT CONTROL MASK ........................326 Control Registers ......................................327 CONTROL REGISTER A ..................................327 BIT MAP OF REGISTER CRA .............................328 BIT MAP OF REGISTER CRB .............................329 Port Signal Assignments.................................329 Hardware Connection Details.............................332 INTERFACE SIGNALS ...................................332 Appendix G AUTOCONFIG ....................................335 Debugging AUTOCONFIG Boards.............................336 Address Specification Table.............................337 Appendix H Keyboard.......................................343 Keyboard Communications.................................344 Keycodes................................................345 "CAPS LOCK" Key.........................................345 "Out-of-Sync" Condition.................................346 Power-Up Sequence ......................................346 Reset Warning...........................................348 Hard Reset..............................................348 Special Codes...........................................349 Matrix Table............................................350 Appendix I External Disk Connector Interface Spec.
.......353 General.................................................353 Summary Table...........................................354 Signals When Driving a Disk.............................355 Device I.D..............................................357 Appendix J Hardware Example Include File..................359 Glossary .................................................365 Index ....................................................373