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clock delay) ........................................................................................................................................... 98
2.5.4 Operation of Serial Interface Special Function (transmission in slave mode ............................... 102
without delay) ...................................................................................................................................... 102
2.5.5 Operation of Serial Interface Special Function (reception in slave mode with ............................. 106
clock delay) ......................................................................................................................................... 106
2.6 Serial sound interface ................................................................................................ 110
2.6.1 Overview .............................................................................................................................................. 110
2.6.2 Example of Serial Sound Interface operation .................................................................................. 116
2.6.3 Precautions for Serial Sound Interface ............................................................................................. 120
2.7 Frequency synthesizer (PLL) .................................................................................... 121
2.7.1 Overview .............................................................................................................................................. 121
2.7.2 Operation of frequency synthesizer .................................................................................................. 124
2.7.3 Precautions for Frequency synthesizer ............................................................................................ 126
2.8 USB function ............................................................................................................... 127
2.8.1 Overview .............................................................................................................................................. 127
2.8.2 USB function control .......................................................................................................................... 139
2.8.3 USB Interrupt ....................................................................................................................................... 150
2.8.4 USB Operation (Suspend/Resume Function) ................................................................................... 161
2.8.5 USB Operation (Endpoint 0) .............................................................................................................. 169
2.8.6 USB Operation (Endpoints 1 to 4 Receive) ...................................................................................... 182
2.8.7 USB Operation (Endpoints 1 to 4 Transmit) ..................................................................................... 193
2.8.8 USB Operation (Interface with DMAC Transfer) ............................................................................... 207
2.8.9 Precautions for USB ........................................................................................................................... 210
2.9 A/D Converter .............................................................................................................. 213
2.9.1 Overview .............................................................................................................................................. 213
2.9.2 Operation of A/D converter (one-shot mode) ................................................................................... 218
2.9.3 Operation of A/D Converter (in one-shot mode, an external trigger selected) ............................. 220
2.9.4 Operation of A/D Converter (in repeat mode) ................................................................................... 222
2.9.5 Operation of A/D Converter (in single sweep mode) ....................................................................... 224
2.9.6 Operation of A/D Converter (in repeat sweep mode 0) .................................................................... 226
2.9.7 Operation of A/D Converter (in repeat sweep mode 1) .................................................................... 228
2.9.8 Precautions for A/D Converter ........................................................................................................... 230
2.9.9 Method of A/D Conversion (10-bit mode) ......................................................................................... 231
2.9.10 Method of A/D Conversion (8-bit mode) ......................................................................................... 233
2.9.11 Absolute Accuracy and Differential Non-Linearity Error ............................................................... 235
2.9.12 Internal Equivalent Circuit of Analog Input .................................................................................... 237
2.9.13 Sensor's Output Impedance under A/D Conversion (reference value) ........................................ 238
2.10 DMAC Usage ............................................................................................................. 240
2.10.1 Overview of the DMAC usage .......................................................................................................... 240
2.10.2 Operation of DMAC (one-shot transfer mode) ............................................................................... 245
2.10.3 Operation of DMAC (repeated transfer mode) ............................................................................... 247
2.11 CRC Calculation Circuit ........................................................................................... 249
2.11.1 Overview ............................................................................................................................................ 249
2.11.2 Operation of CRC Calculation Circuit ............................................................................................. 251
2.11.3 SFR Access Snoop Function ........................................................................................................... 252
2.12 Watchdog Timer ........................................................................................................ 253
A-2
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