h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 23

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

21.5 Medium-Speed Clock Divider .......................................................................................... 737
21.6 Bus Master Clock Selection Circuit.................................................................................. 738
21.7 Subclock Oscillator........................................................................................................... 738
21.8 Subclock Waveform Generation Circuit........................................................................... 739
21.9 Note on Crystal Resonator ................................................................................................ 739
Section 22 Power-Down Modes
22.1 Overview .......................................................................................................................... 741
22.2 Register Descriptions........................................................................................................ 746
22.3 Medium-Speed Mode ....................................................................................................... 755
22.4 Sleep Mode ....................................................................................................................... 756
22.5 Module Stop Mode ........................................................................................................... 757
22.6 Software Standby Mode.................................................................................................... 758
22.7 Hardware Standby Mode .................................................................................................. 762
22.8 Watch Mode...................................................................................................................... 763
22.9 Subsleep Mode.................................................................................................................. 765
22.10 Subactive Mode ................................................................................................................ 766
22.1.1 Register Configuration......................................................................................... 745
22.2.1 Standby Control Register (SBYCR) .................................................................... 746
22.2.2 System Clock Control Register (SCKCR)........................................................... 748
22.2.3 Low-Power Control Register (LPWRCR) ........................................................... 749
22.2.4 Timer Control/Status Register (TCSR)................................................................ 752
22.2.5 Module Stop Control Register (MSTPCR).......................................................... 753
22.4.1 Sleep Mode .......................................................................................................... 756
22.4.2 Exiting Sleep Mode ............................................................................................. 756
22.5.1 Module Stop Mode .............................................................................................. 757
22.5.2 Usage Notes......................................................................................................... 758
22.6.1 Software Standby Mode ...................................................................................... 758
22.6.2 Clearing Software Standby Mode........................................................................ 759
22.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode .. 760
22.6.4 Software Standby Mode Application Example.................................................... 760
22.6.5 Usage Notes......................................................................................................... 761
22.7.1 Hardware Standby Mode ..................................................................................... 762
22.7.2 Hardware Standby Mode Timing ........................................................................ 763
22.8.1 Watch Mode ........................................................................................................ 763
22.8.2 Exiting Watch Mode............................................................................................ 764
22.8.3 Notes.................................................................................................................... 764
22.9.1 Subsleep Mode .................................................................................................... 765
22.9.2 Exiting Subsleep Mode........................................................................................ 765
22.10.1 Subactive Mode ................................................................................................... 766
22.10.2 Exiting Subactive Mode ...................................................................................... 766
..................................................................................... 741
Rev. 5.00 Sep 22, 2005 page xxiii of xxvi