12.4 Operation ..............................................................................................................................240
12.4.1 Expanded Modes (Modes 1 and 2)..........................................................................240
12.4.2 Single-Chip Mode (Mode 3) ...................................................................................240
Section 13. ROM
.......................................................................................................................241
13.1 Overview...............................................................................................................................241
13.1.1 Block Diagram.........................................................................................................242
13.2 PROM Mode.........................................................................................................................242
13.2.1 PROM Mode Setup .................................................................................................242
13.2.2 Socket Adapter Pin Assignments and Memory Map...............................................243
13.3 Programming ........................................................................................................................245
13.3.1 Writing and Verifying..............................................................................................245
13.3.2 Notes on Writing......................................................................................................249
13.3.3 Reliability of Written Data ......................................................................................249
13.3.4 Erasing of Data........................................................................................................250
13.4 Handling of Windowed Packages.........................................................................................250
Section 14. Power-Down State
..............................................................................................253
14.1 Overview...............................................................................................................................253
14.2 System Control Register: Power-Down Control Bits...........................................................254
14.3 Sleep Mode...........................................................................................................................255
14.3.1 Transition to Sleep Mode.........................................................................................256
14.3.2 Exit from Sleep Mode .............................................................................................256
14.4 Software Standby Mode........................................................................................................256
14.4.1 Transition to Software Standby Mode.....................................................................257
14.4.2 Exit from Software Standby Mode..........................................................................257
14.4.3 Sample Application of Software Standby Mode.....................................................257
14.4.4 Application Notes....................................................................................................258
14.5 Hardware Standby Mode......................................................................................................259
14.5.1 Transition to Hardware Standby Mode....................................................................259
14.5.2 Recovery from Hardware Standby Mode................................................................259
14.5.3 Timing Relationships...............................................................................................260
Section 15. E-Clock Interface
................................................................................................261
15.1 Overview...............................................................................................................................261
Section 16. Clock Pulse Generator
.......................................................................................265
16.1 Overview...............................................................................................................................265
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