HD64338324 datasheet(13/663 Pages) RENESAS

13 / 663 page

Rev. 6.00 Aug 04, 2006 page xiii of xxxiv

Section 5 Power-Down Modes ........................................................................................ 121

5.1

Overview........................................................................................................................... 121

5.1.1

System Control Registers..................................................................................... 124

5.2

Sleep Mode ....................................................................................................................... 128

5.2.1

Transition to Sleep Mode..................................................................................... 128

5.2.2

Clearing Sleep Mode............................................................................................ 129

5.2.3

Clock Frequency in Sleep (Medium-Speed) Mode.............................................. 129

5.3

Standby Mode ................................................................................................................... 129

5.3.1

Transition to Standby Mode................................................................................. 129

5.3.2

Clearing Standby Mode ....................................................................................... 130

5.3.3

Oscillator Settling Time after Standby Mode is Cleared ..................................... 131

5.3.4

Standby Mode Transition and Pin States ............................................................. 131

5.3.5

Notes on External Input Signal Changes before/after Standby Mode.................. 132

5.4

Watch Mode...................................................................................................................... 134

5.4.1

Transition to Watch Mode ................................................................................... 134

5.4.2

Clearing Watch Mode .......................................................................................... 134

5.4.3

Oscillator Settling Time after Watch Mode is Cleared ........................................ 134

5.4.4

Notes on External Input Signal Changes before/after Watch Mode .................... 135

5.5

Subsleep Mode.................................................................................................................. 135

5.5.1

Transition to Subsleep Mode ............................................................................... 135

5.5.2

Clearing Subsleep Mode ...................................................................................... 135

5.6

Subactive Mode ................................................................................................................ 136

5.6.1

Transition to Subactive Mode .............................................................................. 136

5.6.2

Clearing Subactive Mode..................................................................................... 136

5.6.3

Operating Frequency in Subactive Mode............................................................. 136

5.7

Active (Medium-Speed) Mode ......................................................................................... 137

5.7.1

Transition to Active (Medium-Speed) Mode....................................................... 137

5.7.2

Clearing Active (Medium-Speed) Mode.............................................................. 137

5.7.3

Operating Frequency in Active (Medium-Speed) Mode...................................... 137

5.8

Direct Transfer .................................................................................................................. 138

5.8.1

Overview of Direct Transfer ................................................................................ 138

5.8.2

Direct Transition Times ....................................................................................... 139

5.8.3

Notes on External Input Signal Changes before/after Direct Transition.............. 141

5.9

Module Standby Mode...................................................................................................... 142

5.9.1

Setting Module Standby Mode ............................................................................ 142

5.9.2

Clearing Module Standby Mode .......................................................................... 142

5.9.3

Usage Note........................................................................................................... 144

Section 6 ROM..................................................................................................................... 145

6.1

Overview........................................................................................................................... 145

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