16.5 Acknowledge ................................................................................................................... 171
16.6 Synchronization/ arbitration ............................................................................................. 172
16.7 Block Operation ............................................................................................................... 173
16.7.1 I2C block initialization process ........................................................................... 174
16.7.2 I2C interrupt service ........................................................................................... 175
16.7.3 Master transmitter ............................................................................................... 176
16.7.4 Slave receiver ..................................................................................................... 178
16.8 Register map ................................................................................................................... 179
16.9 I2C register description ................................................................................................... 180
17 Power down operation ............................................................................................................... 184
17.1 Peripheral operation in IDLE/ STOP mode ..................................................................... 184
17.2 IDLE mode ...................................................................................................................... 185
17.3 STOP mode ..................................................................................................................... 186
17.4 Released operation of STOP mode ................................................................................ 188
17.5 Register map ................................................................................................................... 189
17.6 Register description ........................................................................................................ 189
18 Reset .......................................................................................................................................... 190
18.1 Reset block diagram ....................................................................................................... 190
18.2 RESET noise canceller ................................................................................................... 191
18.3 Power on reset ................................................................................................................ 191
18.4 External RESETB input ................................................................................................... 194
18.5 Brown out detector processor ......................................................................................... 195
18.6 Register map ................................................................................................................... 196
18.7 Register description for reset operation .......................................................................... 197
19 Memory programming ................................................................................................................ 199
19.1 Flash control and status registers ................................................................................... 199
19.1.1 Register map ...................................................................................................... 199
19.1.2 Register description ............................................................................................ 200
19.2 Memory map ................................................................................................................... 206
19.2.1 Flash memory map ............................................................................................. 206
19.3 Serial in-system program mode ...................................................................................... 207
19.3.1 Flash operation ................................................................................................... 207
19.4 Parallel mode .................................................................................................................. 214
19.4.1 Parallel mode instruction format ......................................................................... 215
19.4.2 Parallel mode timing diagram ............................................................................. 216
19.5 Mode entrance method of ISP mode .............................................................................. 217
19.5.1 Mode entrance method for ISP .......................................................................... 217
19.5.2 Mode entrance of byte-parallel ........................................................................... 217
19.6 Security ........................................................................................................................... 218
19.7 Configure option .............................................................................................................. 219
20 Electrical characteristics............................................................................................................. 220
20.1 Absolute maximum ratings .............................................................................................. 220
20.2 Recommended operating conditions .............................................................................. 220
20.3 Internal RC oscillator characteristics ............................................................................... 221
20.4 Internal WDT oscillator characteristics ............................................................................ 221
20.5 Voltage Dropout Converter characteristics ..................................................................... 221
20.6 A/D Converter characteristics ......................................................................................... 222
20.7 Low voltage reset characteristics .................................................................................... 222
20.8 Brown out Detector characteristics ................................................................................. 223
20.9 Power on Reset characteristics ....................................................................................... 223