iv
5.3.3
Oscillator Settling Time after Standby Mode is Cleared...................................... 105
5.3.4
Standby Mode Transition and Pin States.............................................................. 106
5.3.5
Notes on External Input Signal Changes before/after Standby Mode .................. 106
5.4
Watch Mode ....................................................................................................................... 108
5.4.1
Transition to Watch Mode .................................................................................... 108
5.4.2
Clearing Watch Mode ........................................................................................... 108
5.4.3
Oscillator Settling Time after Watch Mode is Cleared ........................................ 108
5.4.4
Notes on External Input Signal Changes before/after Watch Mode..................... 108
5.5
Subsleep Mode ................................................................................................................... 109
5.5.1
Transition to Subsleep Mode ................................................................................ 109
5.5.2
Clearing Subsleep Mode ....................................................................................... 109
5.6
Subactive Mode.................................................................................................................. 110
5.6.1
Transition to Subactive Mode............................................................................... 110
5.6.2
Clearing Subactive Mode...................................................................................... 110
5.6.3
Operating Frequency in Subactive Mode ............................................................. 110
5.7
Active (Medium-Speed) Mode .......................................................................................... 111
5.7.1
Transition to Active (Medium-Speed) Mode........................................................ 111
5.7.2
Clearing Active (Medium-Speed) Mode .............................................................. 111
5.7.3
Operating Frequency in Active (Medium-Speed) Mode ...................................... 111
5.8
Direct Transfer ................................................................................................................... 112
5.8.1
Overview of Direct Transfer................................................................................. 112
5.8.2
Direct Transition Times ........................................................................................ 113
5.8.3
Notes on External Input Signal Changes before/after Direct Transition .............. 115
5.9
Module Standby Mode....................................................................................................... 116
5.9.1
Setting Module Standby Mode ............................................................................. 116
5.9.2
Clearing Module Standby Mode........................................................................... 116
Section 6
ROM
.................................................................................................................... 119
6.1
Overview............................................................................................................................ 119
6.1.1
Block Diagram...................................................................................................... 119
6.2
H8/3827R PROM Mode .................................................................................................... 120
6.2.1
Setting to PROM Mode ........................................................................................ 120
6.2.2
Socket Adapter Pin Arrangement and Memory Map ........................................... 120
6.3
H8/3827R Programming.................................................................................................... 123
6.3.1
Writing and Verifying........................................................................................... 123
6.3.2
Programming Precautions..................................................................................... 128
6.4
Reliability of Programmed Data ........................................................................................ 129
Section 7
RAM
.................................................................................................................... 131
7.1
Overview............................................................................................................................ 131
7.1.1
Block Diagram...................................................................................................... 131