Hitachi H8/3937 Series Hardware Manual page 7

5.3 Standby Mode..................................................................................................................... 105
5.3.1 Transition to Standby Mode.................................................................................. 105
5.3.2 Clearing Standby Mode ........................................................................................ 105
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 .................. 107
5.4 Watch Mode ....................................................................................................................... 109
5.4.1 Transition to Watch Mode .................................................................................... 109
5.4.2 Clearing Watch Mode ........................................................................................... 109
5.4.3 Oscillator Settling Time after Watch Mode is Cleared......................................... 109
5.4.4 Notes on External Input Signal Changes before/after Watch Mode..................... 109
5.5 Subsleep Mode ................................................................................................................... 110
5.5.1 Transition to Subsleep Mode ................................................................................ 110
5.5.2 Clearing Subsleep Mode ....................................................................................... 110
5.6 Subactive Mode.................................................................................................................. 111
5.6.1 Transition to Subactive Mode............................................................................... 111
5.6.2 Clearing Subactive Mode...................................................................................... 111
5.6.3 Operating Frequency in Subactive Mode ............................................................. 111
5.7 Active (Medium-Speed) Mode........................................................................................... 112
5.7.1 Transition to Active (Medium-Speed) Mode........................................................ 112
5.7.2 Clearing Active (Medium-Speed) Mode............................................................... 112
5.7.3 Operating Frequency in Active (Medium-Speed) Mode ...................................... 112
5.8 Direct Transfer ................................................................................................................... 113
5.8.1 Overview of Direct Transfer................................................................................. 113
5.8.2 Direct Transition Times ........................................................................................ 114
5.8.3 Notes on External Input Signal Changes before/after Direct Transition .............. 116
5.9 Module Standby Mode....................................................................................................... 117
5.9.1 Setting Module Standby Mode ............................................................................. 117
5.9.2 Clearing Module Standby Mode........................................................................... 117
Section 6 ROM
6.1 Overview ............................................................................................................................ 119
6.1.1 Block Diagram ...................................................................................................... 119
6.2 PROM Mode ...................................................................................................................... 120
6.2.1 Setting to PROM Mode......................................................................................... 120
6.2.2 Socket Adapter Pin Arrangement and Memory Map ........................................... 120
6.3 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
7.1 Overview ............................................................................................................................ 131
.................................................................................................................... 119
.................................................................................................................... 131
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