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BH67F2260 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc |
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BH67F2260 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc |
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3 / 253 page  Rev. 1.00 2 March 15, 2017 Rev. 1.00 3 March 15, 2017 BH67F2260/BH67F2270 R-Sensor Blood Pressure Meter Flash MCU with LCD BH67F2260/BH67F2270 R-Sensor Blood Pressure Meter Flash MCU with LCD On-Chip Debug Support – OCDS ..............................................................................................39 In Application Programming – IAP .............................................................................................39 Flash Memory Read/Write Procedure........................................................................................44 Data Memory ...................................................................................................... 47 Structure.....................................................................................................................................47 Data Memory Addressing...........................................................................................................48 General Purpose Data Memory .................................................................................................48 Special Purpose Data Memory ..................................................................................................48 Special Function Register Description............................................................ 51 Indirect Addressing Registers – IAR0, IAR1, IAR2 ....................................................................51 Memory Pointers – MP0, MP1L, MP1H, MP2L, MP2H..............................................................51 Program Memory Bank Pointer – PBP.......................................................................................53 Accumulator – ACC....................................................................................................................53 Program Counter Low Register – PCL.......................................................................................53 Look-up Table Registers – TBLP, TBHP, TBLH..........................................................................54 Status Register – STATUS.........................................................................................................54 EEPROM Data Memory...................................................................................... 56 EEPROM Data Memory Structure .............................................................................................56 EEPROM Registers ...................................................................................................................56 Reading Data from the EEPROM ..............................................................................................58 Writing Data to the EEPROM.....................................................................................................58 Write Protection..........................................................................................................................58 EEPROM Interrupt .....................................................................................................................58 Programming Considerations.....................................................................................................59 Oscillators .......................................................................................................... 60 Oscillator Overview ....................................................................................................................60 System Clock Configurations.....................................................................................................60 External Crystal/Ceramic Oscillator – HXT ................................................................................61 Internal High Speed RC Oscillator – HIRC ................................................................................62 External 32.768kHz Crystal Oscillator – LXT.............................................................................62 Internal 32kHz Oscillator – LIRC................................................................................................63 Operating Modes and System Clocks ............................................................. 64 System Clocks ...........................................................................................................................64 System Operation Modes...........................................................................................................65 Control Registers .......................................................................................................................66 Operating Mode Switching.........................................................................................................68 Standby Current Considerations................................................................................................72 Wake-up.....................................................................................................................................72 Watchdog Timer................................................................................................. 73 Watchdog Timer Clock Source...................................................................................................73 Watchdog Timer Control Register ..............................................................................................73 Watchdog Timer Operation ........................................................................................................74 |
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