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16.9 Cautions on Emulation ........................................................................................................ 203
CHAPTER 17 SOUND GENERATOR .............................................................................................. 205
17.1 Sound Generator Function ................................................................................................. 205
17.2 Sound Generator Configuration ......................................................................................... 206
17.3 Sound Generator Control Registers .................................................................................. 207
17.4 Sound Generator Operations ............................................................................................. 212
17.4.1 To output basic cycle signal SGOF (without amplitude) .............................................................
17.4.2 To output basic cycle signal SGO (with amplitude) .....................................................................
CHAPTER 18 METER CONTROLLER/DRIVER .............................................................................. 213
18.1 Meter Controller/Driver Functions ..................................................................................... 213
18.2 Meter Controller/Driver Configuration ............................................................................... 214
18.3 Meter Controller/Driver Control Registers ........................................................................ 216
18.4 Meter Controller/Driver Operations .................................................................................... 220
18.4.1 Basic operation of free-running up counter (MCNT) ...................................................................
18.4.2 To update PWM data ..................................................................................................................
18.4.3 Operation of 1-bit addition circuit ................................................................................................
18.4.4 PWM output operation (output with 1 clock shifted) ...................................................................
CHAPTER 19 INTERRUPT FUNCTIONS ......................................................................................... 223
19.1 Interrupt Function Types .................................................................................................... 223
19.2 Interrupt Sources and Configuration ................................................................................. 223
19.3 Interrupt Function Control Registers ................................................................................. 227
19.4 Interrupt Servicing Operations ........................................................................................... 234
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 .............................................................................................. 245
20.1 Standby Function and Configuration ................................................................................ 245
20.1.1 Standby function .........................................................................................................................
20.1.2 Standby function control register ................................................................................................
20.2 Standby Function Operations ............................................................................................ 247
20.2.1 HALT mode .................................................................................................................................
20.2.2 STOP mode ................................................................................................................................
CHAPTER 21 RESET FUNCTION .................................................................................................... 253
21.1 Reset Function ..................................................................................................................... 253
CHAPTER 22 µ PD78F0974 ............................................................................................................... 257
22.1 Memory Size Switching Register ....................................................................................... 258
22.2 Flash Memory Programming .............................................................................................. 259
22.2.1 Selection of transmission method ...............................................................................................
22.2.2 Flash memory programming function .........................................................................................
22.2.3 Flashpro II connection ................................................................................................................
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