Preliminary User’s Manual U17473EJ1V0UD
14
17.7
Display Modes ........................................................................................................................ 437
17.7.1
Static display example..............................................................................................................437
17.7.2
Two-time-slice display example................................................................................................440
17.7.3
Three-time-slice display example .............................................................................................443
17.7.4
Four-time-slice display example ...............................................................................................447
17.8
Supplying LCD Drive Voltages VLC0, VLC1, and VLC2 ............................................................. 450
17.8.1
Internal resistance division method ..........................................................................................450
17.8.2
External resistance division method .........................................................................................452
17.8.3
Internal voltage boosting method .............................................................................................453
CHAPTER 18 MULTIPLIER/DIVIDER (
PD78F0395, 78F0397, AND 78F0397D ONLY).............. 454
18.1
Functions of Multiplier/Divider ............................................................................................. 454
18.2
Configuration of Multiplier/Divider ....................................................................................... 454
18.3
Register Controlling Multiplier/Divider ................................................................................ 458
18.4
Operations of Multiplier/Divider............................................................................................ 459
18.4.1
Multiplication operation.............................................................................................................459
18.4.2
Division operation.....................................................................................................................461
CHAPTER 19 INTERRUPT FUNCTIONS ............................................................................................ 463
19.1
Interrupt Function Types....................................................................................................... 463
19.2
Interrupt Sources and Configuration ................................................................................... 463
19.3
Registers Controlling Interrupt Functions .......................................................................... 467
19.4
Interrupt Servicing Operations ............................................................................................. 475
19.4.1
Maskable interrupt acknowledgement ......................................................................................475
19.4.2
Software interrupt request acknowledgement ..........................................................................477
19.4.3
Multiple interrupt servicing........................................................................................................478
19.4.4
Interrupt request hold ...............................................................................................................481
CHAPTER 20 KEY INTERRUPT FUNCTION ..................................................................................... 482
20.1
Functions of Key Interrupt .................................................................................................... 482
20.2
Configuration of Key Interrupt.............................................................................................. 482
20.3
Register Controlling Key Interrupt ....................................................................................... 483
CHAPTER 21 STANDBY FUNCTION .................................................................................................. 484
21.1
Standby Function and Configuration................................................................................... 484
21.1.1
Standby function.......................................................................................................................484
21.1.2
Registers controlling standby function......................................................................................485
21.2
Standby Function Operation................................................................................................. 487
21.2.1
HALT mode ..............................................................................................................................487
21.2.2
STOP mode .............................................................................................................................492
CHAPTER 22 RESET FUNCTION........................................................................................................ 497
22.1
Register for Confirming Reset Source................................................................................. 505
CHAPTER 23 POWER-ON-CLEAR CIRCUIT...................................................................................... 506
23.1
Functions of Power-on-Clear Circuit ................................................................................... 506