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
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