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CHAPTER 17 SOUND GENERATOR ............................................................................................... 223
17.1 Sound Generator Function ................................................................................................. 223
17.2 Sound Generator Configuration ......................................................................................... 224
17.3 Sound Generator Control Registers .................................................................................. 225
17.4 Sound Generator Operations ............................................................................................. 229
17.4.1 To output basic cycle signal SGO ...............................................................................................
CHAPTER 18 METER CONTROLLER/DRIVER ............................................................................... 231
18.1 Meter Controller/Driver Functions ..................................................................................... 231
18.2 Meter Controller/Driver Configuration ............................................................................... 232
18.3 Meter Controller/Driver Control Registers ........................................................................ 234
18.4 Meter Controller/Driver Operations .................................................................................... 237
18.4.1 Basic operation of free-running up counter (MCNT) ...................................................................
18.4.2 To update PWM data ..................................................................................................................
18.4.3 1-bit addition circuit operation .....................................................................................................
18.4.4 PWM output operation (output with 1 clock shifted) ...................................................................
CHAPTER 19 INTERRUPT FUNCTIONS .......................................................................................... 241
19.1 Interrupt Function Types .................................................................................................... 241
19.2 Interrupt Sources and Configuration ................................................................................. 241
19.3 Interrupt Function Control Registers ................................................................................. 245
19.4 Interrupt Servicing Operations ........................................................................................... 252
19.4.1 Non-maskable interrupt request acknowledge operation ...........................................................
19.4.2 Maskable interrupt request acknowledge operation ...................................................................
19.4.3 Software interrupt request acknowledge operation ....................................................................
19.4.4 Multiple interrupt servicing ..........................................................................................................
19.4.5 Interrupt request hold ..................................................................................................................
CHAPTER 20 STANDBY FUNCTION ............................................................................................... 263
20.1 Standby Function and Configuration ................................................................................ 263
20.1.1 Standby function .........................................................................................................................
20.1.2 Standby function control register ................................................................................................
20.2 Standby Function Operations ............................................................................................ 265
20.2.1 HALT mode .................................................................................................................................
20.2.2 STOP mode ................................................................................................................................
CHAPTER 21 RESET FUNCTION ..................................................................................................... 271
21.1 Reset Functions ................................................................................................................... 271
CHAPTER 22 µ PD78F0852 ............................................................................................................... 275
22.1 Memory Size Switching Register (IMS) .............................................................................. 276
22.2 Internal Expansion RAM Size Switching Register (IXS) ................................................... 277
22.3 Flash Memory Programming .............................................................................................. 278
22.3.1 Selection of transmission method ...............................................................................................
22.3.2 Flash memory programming function .........................................................................................
22.3.3 Flashpro III connection ...............................................................................................................
CHAPTER 23 INSTRUCTION SET .................................................................................................... 281
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