HD6432646 Hitachi, HD6432646 Datasheet - Page 32

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

20.12 Flash Memory and Power-Down States ............................................................................ 709
20.13 Flash Memory Programming and Erasing Precautions ..................................................... 710
Section 21 Clock Pulse Generator .....................................................................715
21.1 Overview............................................................................................................................ 715
21.2 Register Descriptions......................................................................................................... 716
21.3 Oscillator............................................................................................................................ 718
21.4 PLL Circuit........................................................................................................................ 721
21.5 Medium-Speed Clock Divider........................................................................................... 721
21.6 Bus Master Clock Selection Circuit .................................................................................. 721
21.7 Subclock Oscillator............................................................................................................ 722
21.8 Subclock Waveform Generation Circuit ........................................................................... 723
21.9 Note on Crystal Resonator................................................................................................. 723
Section 22 Power-Down Modes ........................................................................725
22.1 Overview............................................................................................................................ 725
22.2 Register Descriptions......................................................................................................... 730
22.3 Medium-Speed Mode ........................................................................................................ 738
22.4 Sleep Mode........................................................................................................................ 739
22.5 Module Stop Mode ............................................................................................................ 740
22.6 Software Standby Mode .................................................................................................... 742
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20.11.8 Programmer Mode Transition Time..................................................................... 707
20.11.9 Notes on Memory Programming.......................................................................... 708
20.12.1 Notes on Power-Down States............................................................................... 709
21.1.1 Block Diagram...................................................................................................... 715
21.1.2 Register Configuration ......................................................................................... 716
21.2.1 System Clock Control Register (SCKCR) ........................................................... 716
21.2.2 Low-Power Control Register (LPWRCR)............................................................ 717
21.3.1 Connecting a Crystal Resonator ........................................................................... 718
22.1.1 Register Configuration ......................................................................................... 729
22.2.1 Standby Control Register (SBYCR) .................................................................... 730
22.2.2 System Clock Control Register (SCKCR) ........................................................... 732
22.2.3 Low-Power Control Register (LPWRCR)............................................................ 733
22.2.4 Timer Control/Status Register (TCSR) ................................................................ 736
22.2.5 Module Stop Control Register (MSTPCR) .......................................................... 737
22.4.1 Sleep Mode........................................................................................................... 739
22.4.2 Exiting Sleep Mode.............................................................................................. 739
22.5.1 Module Stop Mode ............................................................................................... 740
22.5.2 Usage Notes.......................................................................................................... 741
22.6.1 Software Standby Mode ....................................................................................... 742
22.6.2 Clearing Software Standby Mode ........................................................................ 742
22.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode .. 743
22.6.4 Software Standby Mode Application Example .................................................... 743