tmp89ch42 TOSHIBA Semiconductor CORPORATION, tmp89ch42 Datasheet - Page 8

• Manufacturer Part Number: tmp89ch42
• Description: 8 Bit Microcontroller Tlcs-870/c1 Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

3. Interrupt Control Circuit
4. External Interrupt control circuit
5. Watchdog Timer (WDT)
ii
2.5 Revision History......................................................................................................................45
3.1 Configuration...........................................................................................................................48
3.2 Interrupt Latches (IL25 to IL3)................................................................................................49
3.3 Interrupt Enable Register (EIR)...............................................................................................50
3.4 Maskable Interrupt Priority Change Function.........................................................................53
3.5 Interrupt Sequence...................................................................................................................55
3.6 Software Interrupt (INTSW)....................................................................................................59
3.7 Undefined Instruction Interrupt (INTUNDEF).......................................................................59
3.8 Revision History......................................................................................................................60
4.1 Configuration...........................................................................................................................61
4.2 Control.....................................................................................................................................61
4.3 Function...................................................................................................................................65
5.1 Configuration...........................................................................................................................71
5.2 Control.....................................................................................................................................72
5.3 Functions..................................................................................................................................74
3.3.1
3.3.2
3.5.1
3.5.2
3.5.3
3.5.4
3.6.1
3.6.2
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
3.5.3.1
3.5.3.2
3.5.3.3
4.3.3.1
4.3.3.2
4.3.3.3
4.3.4.1
4.3.4.2
4.3.4.3
Interrupt master enable flag (IMF)....................................................................................................................................50
Individual interrupt enable flags (EF25 to EF4)................................................................................................................50
Initial Setting......................................................................................................................................................................55
Interrupt acceptance processing.........................................................................................................................................55
Saving/restoring general-purpose registers........................................................................................................................56
Interrupt return...................................................................................................................................................................58
Address error detection......................................................................................................................................................59
Debugging..........................................................................................................................................................................59
Low power consumption function.....................................................................................................................................66
External interrupt 0............................................................................................................................................................66
External interrupts 1/2/3....................................................................................................................................................67
External interrupt 4............................................................................................................................................................68
External interrupt 5............................................................................................................................................................70
Setting of enabling/disabling the watchdog timer operation.............................................................................................74
Setting the clear time of the 8-bit up counter.....................................................................................................................74
Setting the overflow time of the 8-bit up counter..............................................................................................................75
Setting an overflow detection signal of the 8-bit up counter.............................................................................................75
Writing the watchdog timer control codes.........................................................................................................................76
Reading the 8-bit up counter..............................................................................................................................................76
Reading the watchdog timer status....................................................................................................................................76
Using PUSH and POP instructions
Using data transfer instructions
Using a register bank to save/restore general-purpose registers
Interrupt request signal generating condition detection function
A noise canceller pass signal monitoring function when interrupt request signals are generated
Noise cancel time selection function
Interrupt request signal generating condition detection function
A noise canceller pass signal monitoring function when interrupt request signals are generated
Noise cancel time selection function