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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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H8S/2223 Scheda tecnica(PDF) 62 Page - Renesas Technology Corp |
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H8S/2223 Scheda tecnica(HTML) 62 Page - Renesas Technology Corp |
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62 / 1071 page  Rev. 5.00 Aug 08, 2006 page lxii of lxxxvi Section 21 Masked ROM .................................................................................................. 753 21.1 Features............................................................................................................................. 753 Section 22 PROM................................................................................................................ 755 22.1 PROM Mode Setting......................................................................................................... 755 22.2 Socket Adapter and Memory Map .................................................................................... 755 22.3 Programming..................................................................................................................... 759 22.3.1 Programming and Verification............................................................................. 759 22.3.2 Programming Precautions.................................................................................... 763 22.3.3 Reliability of Programmed Data .......................................................................... 764 Section 23 Clock Pulse Generator .................................................................................. 765 23.1 Register Descriptions ........................................................................................................ 766 23.1.1 System Clock Control Register (SCKCR) ........................................................... 766 23.1.2 Low-Power Control Register (LPWRCR) ........................................................... 768 23.2 System Clock Oscillator.................................................................................................... 770 23.2.1 Connecting a Crystal Resonator........................................................................... 770 23.2.2 External Clock Input ............................................................................................ 771 23.2.3 Notes on Switching External Clock ..................................................................... 777 23.3 Duty Adjustment Circuit................................................................................................... 779 23.4 Medium-Speed Clock Divider .......................................................................................... 779 23.5 Bus Master Clock Selection Circuit.................................................................................. 779 23.6 System Clock when Using IEBus ..................................................................................... 779 23.7 Subclock Oscillator ........................................................................................................... 780 23.7.1 Connecting 32.768-kHz Crystal Resonator.......................................................... 780 23.7.2 Handling Pins when Subclock Not Required....................................................... 781 23.8 Subclock Waveform Generation Circuit ........................................................................... 781 23.9 Usage Notes ...................................................................................................................... 781 23.9.1 Note on Crystal Resonator ................................................................................... 781 23.9.2 Note on Board Design.......................................................................................... 782 Section 24 Power-Down Modes...................................................................................... 783 24.1 Register Description.......................................................................................................... 787 24.1.1 Standby Control Register (SBYCR) .................................................................... 787 24.1.2 Module Stop Control Registers A to C (MSTPCRA to MSTPCRC)................... 789 24.2 Medium-Speed Mode........................................................................................................ 790 24.3 Sleep Mode ....................................................................................................................... 791 24.3.1 Transition to Sleep Mode..................................................................................... 791 24.3.2 Exiting Sleep Mode ............................................................................................. 792 24.4 Software Standby Mode.................................................................................................... 792 |
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