Holtek BS83A04C Manual page 4

TM External Pins .........................................................................................................................52
Programming Considerations ......................................................................................................53
Compact Type TM - CTM ................................................................................... 54
Compact TM Operation ...............................................................................................................54
Compact Type TM Register Description......................................................................................54
Compact Type TM Operating Modes ..........................................................................................58
Touch Key Function ........................................................................................... 64
Touch Key Structure ....................................................................................................................64
Touch Key Register Definition .....................................................................................................64
Touch Key Operation ...................................................................................................................73
Touch Key Data Memory .............................................................................................................76
Touch Key Scan Operation Flowchart .........................................................................................77
Touch Key Interrupts ...................................................................................................................79
Programming Considerations ......................................................................................................79
I C Interface ......................................................................................................... 80
2
I C Interface Operation ................................................................................................................80
2
I C Registers ...............................................................................................................................81
2
I C Bus Communication ..............................................................................................................84
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I C Time-out Control ....................................................................................................................87
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Interrupts ............................................................................................................. 89
Interrupt Registers .......................................................................................................................89
Interrupt Operation ......................................................................................................................92
External Interrupt .........................................................................................................................93
I C Interrupt .................................................................................................................................93
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Time Base Interrupt .....................................................................................................................93
Multi-function Interrupt ................................................................................................................94
Touch Key TKRCOV Interrupt .....................................................................................................95
Touch Key Threshold TKTH Interrupt ..........................................................................................95
TM Interrupt .................................................................................................................................95
Interrupt Wake-up Function .........................................................................................................96
Programming Considerations ......................................................................................................96
Application Circuits ............................................................................................ 97
Instruction Set ..................................................................................................... 98
Introduction .................................................................................................................................98
Instruction Timing ........................................................................................................................98
Moving and Transferring Data .....................................................................................................98
Arithmetic Operations ..................................................................................................................98
Logical and Rotate Operation .....................................................................................................99
Branches and Control Transfer ...................................................................................................99
Bit Operations .............................................................................................................................99
Table Read Operations ...............................................................................................................99
Other Operations .........................................................................................................................99
Instruction Set Summary ................................................................................. 100
Table Conventions .....................................................................................................................100
Rev. 1.00
4-Key Enhanced Touch I/O Flash MCU
4
BS83A04C
March 24, 2020