H8SX1663 datasheet(26/1158 Pages) RENESAS

26 / 1158 page

Rev.1.00 Jun. 07, 2006 Page xxvi of lii

21.5

Input/Output Pins ............................................................................................................... 883

21.6

Register Descriptions ......................................................................................................... 884

21.6.1 Programming/Erasing Interface Registers ............................................................ 885

21.6.2 Programming/Erasing Interface Parameters ......................................................... 891

21.6.3 RAM Emulation Register (RAMER).................................................................... 902

21.7

On-Board Programming Mode .......................................................................................... 903

21.7.1 SCI Boot Mode ..................................................................................................... 903

21.7.2 USB Boot Mode ................................................................................................... 907

21.7.3 User Program Mode.............................................................................................. 911

21.7.4 On-Chip Program and Storable Area for Program Data ....................................... 921

21.8

Protection ........................................................................................................................... 924

21.8.1 Hardware Protection ............................................................................................. 924

21.8.2 Software Protection............................................................................................... 925

21.8.3 Error Protection .................................................................................................... 925

21.9

Flash Memory Emulation Using RAM .............................................................................. 927

21.10 Programmer Mode ............................................................................................................. 930

21.11 Standard Serial Communication Interface Specifications for Boot Mode ......................... 930

21.12 Usage Notes ....................................................................................................................... 955

Section 22 Clock Pulse Generator ..................................................................... 957

22.1

Register Description........................................................................................................... 959

22.1.1 System Clock Control Register (SCKCR) ............................................................ 959

22.1.2 Subclock Control Register (SUBCKCR) .............................................................. 961

22.2

Oscillator............................................................................................................................ 963

22.2.1 Connecting Crystal Resonator .............................................................................. 963

22.2.2 External Clock Input............................................................................................. 964

22.3

PLL Circuit ........................................................................................................................ 965

22.4

Frequency Divider ............................................................................................................. 965

22.5

Subclock Oscillator............................................................................................................ 965

22.5.1 Connecting 32.768 kHz Crystal Resonator........................................................... 965

22.5.2 Handling of Pins when the Subclock is Not to be Used ....................................... 966

22.6

Usage Notes ....................................................................................................................... 967

22.6.1 Notes on Clock Pulse Generator ........................................................................... 967

22.6.2 Notes on Resonator............................................................................................... 968

22.6.3 Notes on Board Design ......................................................................................... 968

Section 23 Power-Down Modes ........................................................................ 971

23.1

Features.............................................................................................................................. 971

23.2

Register Descriptions ......................................................................................................... 973

23.2.1 Standby Control Register (SBYCR) ..................................................................... 974

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