
User’s Manual U18279EJ2V0UD
18
26.2
Debugging Without Using DCU .......................................................................................... 1059
26.2.1
Circuit connection examples....................................................................................................1059
26.2.2
Maskable functions ..................................................................................................................1062
26.2.3
Securing of user resources......................................................................................................1062
26.2.4
Cautions ..................................................................................................................................1068
26.3
ROM Security Function ....................................................................................................... 1069
26.3.1
Security ID ...............................................................................................................................1069
26.3.2
Setting .....................................................................................................................................1070
CHAPTER 27 FLASH MEMORY ........................................................................................................ 1071
27.1
Features ................................................................................................................................ 1071
27.1.1
Erase units...............................................................................................................................1074
27.1.2
Security function ......................................................................................................................1074
27.2
Writing with Flash Memory Programmer ........................................................................... 1076
27.3
Flash Memory Programming Environment ....................................................................... 1077
27.4
Communication Method of Flash Memory Programming ................................................ 1078
27.5
Pin Processing During Flash Memory Programming....................................................... 1084
27.5.1
Power supply ...........................................................................................................................1084
27.5.2
Pins used.................................................................................................................................1084
27.5.3
RESET pin...............................................................................................................................1087
27.5.4
FLMD0 and FLMD1 pins..........................................................................................................1087
27.5.5
Port pins ..................................................................................................................................1088
27.5.6
Other signal pins......................................................................................................................1088
27.6
Flash Memory Programming Mode .................................................................................... 1089
27.6.1
Flash memory control ..............................................................................................................1089
27.6.2
Selection of communication mode ...........................................................................................1090
27.6.3
Communication commands .....................................................................................................1091
27.7
Flash Memory Self Programming ....................................................................................... 1093
27.7.1
Outline of flash memory self programming ..............................................................................1093
27.7.2
Self programming library..........................................................................................................1094
27.7.3
Flash environment ...................................................................................................................1095
27.7.4
Restrictions..............................................................................................................................1096
27.7.5
Interrupt servicing in flash environment ...................................................................................1098
27.7.6
Flash memory self programming flow ......................................................................................1099
27.7.7
Pin processing .........................................................................................................................1104
CHAPTER 28 ELECTRICAL SPECIFICATIONS ............................................................................... 1105
28.1
V850E/IF3 .............................................................................................................................. 1105
28.1.1
Absolute maximum ratings ......................................................................................................1105
28.1.2
Capacitance.............................................................................................................................1106
28.1.3
Operating conditions................................................................................................................1106
28.1.4
Clock oscillator characteristics.................................................................................................1107
28.1.5
Regulator characteristics .........................................................................................................1108
28.1.6
DC characteristics ...................................................................................................................1109
28.1.7
Data retention characteristics ..................................................................................................1111
28.1.8
AC characteristics....................................................................................................................1112
28.1.9
Characteristics of A/D converters 0 and 1 ...............................................................................1122