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User’s Manual U17473EJ2V0UD
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17.5.13 Wakeup function ........................................................................................................................425
17.5.14 Communication reservation........................................................................................................426
17.5.15 Other cautions............................................................................................................................429
17.5.16 Communication operations.........................................................................................................430
17.5.17 Timing of I
2C interrupt request (INTIIC0) occurrence .................................................................438
17.6 Timing Charts ........................................................................................................................... 459
17.7 Communication with LCD Controller/Driver.......................................................................... 466
17.7.1 System configuration....................................................................................................................466
17.7.2 Write operation.............................................................................................................................467
17.7.3 Read operation.............................................................................................................................470
CHAPTER 18 LCD CONTROLLER/DRIVER .......................................................................................................................... 474
18.1 Functions of LCD Controller/Driver........................................................................................ 474
18.2 Configuration of LCD Controller/Driver ................................................................................. 475
18.3 Controlling LCD Controller/Driver .......................................................................................... 477
18.4 Registers Controlling LCD Controller/Driver......................................................................... 479
18.5 Setting LCD Controller/Driver ................................................................................................. 485
18.6 LCD Display Data Memory....................................................................................................... 487
18.7 Common and Segment Signals .............................................................................................. 488
18.8 Display Modes .......................................................................................................................... 492
18.8.1 Static display example .................................................................................................................492
18.8.2 Two-time-slice display example ...................................................................................................495
18.8.3 Three-time-slice display example.................................................................................................498
18.8.4 Four-time-slice display example...................................................................................................502
18.9 Supplying LCD Drive Voltages VLC0, VLC1, and VLC2 ............................................................. 505
18.9.1 Internal resistance division method ..............................................................................................505
18.9.2 External resistance division method.............................................................................................507
18.9.3 Internal voltage boosting method .................................................................................................508
CHAPTER 19 MULTIPLIER/DIVIDER (
μPD78F0394, 78F0395, 78F0396, 78F0397, AND 78F0397D ONLY)..509
19.1 Functions of Multiplier/Divider................................................................................................ 509
19.2 Configuration of Multiplier/Divider ......................................................................................... 509
19.3 Register Controlling Multiplier/Divider................................................................................... 513
19.4 Operations of Multiplier/Divider.............................................................................................. 514
19.4.1 Multiplication operation ................................................................................................................514
19.4.2 Division operation.........................................................................................................................516
CHAPTER 20 INTERRUPT FUNCTIONS................................................................................................................................. 518
20.1 Interrupt Function Types ......................................................................................................... 518
20.2 Interrupt Sources and Configuration ..................................................................................... 518
20.3 Registers Controlling Interrupt Functions............................................................................. 522
20.4 Interrupt Servicing Operations ............................................................................................... 530
20.4.1 Maskable interrupt acknowledgement..........................................................................................530
20.4.2 Software interrupt request acknowledgement ..............................................................................532
20.4.3 Multiple interrupt servicing ...........................................................................................................533
20.4.4 Interrupt request hold ...................................................................................................................536